The Lean Startup: How Today's Entrepreneurs Use Continuous Innovation to Create Radically Successful Businesses

The Lean Startup completely changed the way I think about entrepreneurship and innovation. Eric Ries breaks down complex business concepts into clear, practical steps that can be applied to startups, small businesses, or even large organizations. What I loved most is how the book focuses on testing ideas quickly, learning from real feedback, and adapting fast instead of wasting time and money on unproven plans. The examples and case studies make the ideas feel real and achievable, not just theory. It’s packed with valuable lessons on product development, decision-making, and efficiency — especially the concept of “build, measure, learn,” which I’ve already started using in my own projects. Whether you’re an aspiring entrepreneur or just want to understand how successful companies innovate, this book is an absolute game-changer. Highly recommend!

As an aspiring entrepreneur I found this book very helpful and informative. It Gives entrepreneurs the tools they need to turn ideas into products and avoid common mistakes. It is clear that the author has years of experience creating startups and he provides the reader with the mindset that entrepreneurs and innovators should have. Eric Ries takes the uncertainty associated with creating a startup and turns it into a science. I initially feared that this book would read like a business textbook but I was quickly proven wrong. The book is very well written and easy to read. Eric Ries explains everything in plain english so that it is clear and intuitive. Ries does a good job of using real world examples and anecdotes to explain his concepts. Ries has experience consulting for companies like Intuit and IGN and includes lots of valuable insider information that can't be found in most business textbooks. He also includes alot of real start up success stories as well as many failures and discusses what must be learned from each. Before reading this book, I was discouraged from going forth with my Ideas because I feared my lack of business experience would hold me back. Now I feel like I have the tools to execute my ideas. If I had not read this book, I could easily see myself making some of the common mistakes that lead to startup failures. Instead of creating a minimum viable product to quickly get feedback like Ries recommends, I would spend months or even years developing what I considered to be the perfect prototype, only to find out nobody wanted to use it. All his ideas make perfect sense. Don't make assumptions about what people want, rather find out what your customers want before hand. Everything is about feedback, collecting it then applying it to your product. Don't waste anytime developing something unless you know it creates value. Anyone who is considering creating a startup or new product should read this book. The best thing about this book is that you don't need business experience to understand the core concepts.The principles he talks about can be applied to all types of types of business but are particularly helpful for software and tech products.He answers alot of the questions I had and even question I did not think of but should have been asking.It is only a matter of time before the lean startup method is universally adopted.

If you work for a startup in any sense, or have entrepreneurial visions of grandeur, The Lean Startup by Eric Ries will make an excellent addition to your bookshelf. Eric Ries, a seasoned entrepreneur and co-founder of IMVU (an 3D avatar based chat room), has crafted an excellent introduction to startup best practices. From inception to maturity, any startup, whether a seedling or an The Lean Startupoffshoot from a well established business sequoia, can gain valuable information on how to use lean startup methodologies to help eliminate wasteful activities and instead focus on the projects and techniques to help break through the bonds of linear growth and achieve the exponential. What I found most interesting about these best practices was the initial focus on a minimal viable product to test customer interaction and appreciation of a particular business idea. By building a rough draft of a product or feature, and unleashing it into the wild (even in perhaps an imperfect state), a company can gain valuable insights into whether or not the feature will gain traction with customers. Through the use of real life startup stories, Ries demonstrates how spending many months of careful planning, only to release a product that is ‘not quite’ what the customer is looking for, can cost a great deal of unnecessary time and energy. If instead, products and features are built to be ‘just good enough’, valuable customer data can be gathered, and utilized to either enhance the minimal viable product to make it more production worthy, or pivot onto something else that may be more valuable to the customer. This customer-centric approach permeated the entirety of the book, which, coming from a developer’s standpoint, is not something I feel we generally think about enough. Developers are often extremely code-centric in their thinking. This is certainly important (don’t want to build complete junk, even if it is only the minimal viable product), but we also should not be oblivious to the business needs of our customers. Ries emphasizes that in a startup, all employees and stake-holders, regardless of roles, should be in constant communication with each other to ensure the system being built is indeed for the customer. And while participating in business thought and discussion, developers can gain deeper insight into customer needs, helping them avoid rabbit trails and design the most appropriate system for any particular feature. At Within3, the startup I currently work for, company and product managers, business development, and customer support weekly share goals and practices which I definitely appreciate. It helps me feel more integrated into the company as a whole, and offers the engineering team the opportunity to better understand both the in-house and customer needs for our business. While reading The Lean Startup, I did feel some of the points were hammered home a little to hard, and I found myself zoning out in a few places where the information seemed overly redundant or was presented like a college lecture. But thankfully, Ries would toss a real life startup story my way and re-engage me. I found the stories by far the most interesting and helpful aspect of the book and the most effective tool in validating Ries’ suggestions. All in all, a good read and a valuable looking glass into the moving parts of the startup engine and how to make them churn along as efficiently, and powerfully, as possible.

Lean Startup is a well-written book with a lot of fresh ideas and thinking about start-ups and entrepreneurship. Eric Ries, author of the book, has had a fair share of start-up experience and in his last start-up (IMVU) experimented with a lot of non-standard ways of managing start-ups influenced by Steve Blank and the Toyota Production System (or lean and hence Lean Startup). The book is divided in 3 parts which roughly map to 'phases' of start-ups: 1) vision, 2) steer, and 3) accelerate. Each of these parts is divided in 4 chapters each simply named with one word such as "Test" or "Measure" (not incredibly descriptive). The first part is called Vision and defines Lean Start-up and its influences. It explains how start-ups are about validated learning and how the optimization of start-ups needs to be about how fast they go through the build-measure-learn cycle. When starting a new product, the first thing you need to get is feedback on the product, so it is important to get a Minimum Viable Product out as quickly as possible as learning about how to use the product is a lot more powerful than research or asking customers. The second part continues with the Minimum Viable Product and the learning. The learning we'll need to get from the product is whether our business assumptions (leap-of-faith assumptions) were in fact correct. Start-ups need to change their accounting system to measure their progress in validated learning. When there is enough learning, they can check their leap-of-faith assumption and make the decision to pivot (change a bit in one direction) or persevere (continue). The last part (accelerate) first covers small batches, one of the basic concepts behind lean start-up and then explores the different "engine of growth" that companies have and stress to focus on one of these. After that it gives Eric's perspective on building lasting companies that continue to improve. The author shared his adaptation of the five why technique. It ends with some general discussion about innovation in larger companies. The epilogue contains a surprisingly positive perspective on the principled of scientific management from Fredrick Taylor. All in all, I enjoyed the book quite a lot, especially the first 2 parts. The way the author has weaved a bunch of concepts together into one holistic framework is quite nice and very concrete. It is not easy to manage your company the way the author suggests as it requires a lot of discipline and introspection (both lacking in many companies). But the Lean Startup moves us away from the black art of startups and creates an interesting structure, or at least perspective, to starting up new ventures. Recommended reading.

The title may seem over the top, but actually the implications of Eric's new book are huge. I can't remember a text in recent years that predicted such significant conclusions for society, education, and world business. **Concepts in the book that will make your head spin: 1) Ries's Law (I'm coining this right now) - Moore's Law that states the cost of new technology will rapidly decrease thereby reducing technological risk of innovation. It's not until The Lean Startup that we realize the cost of reaching customers and thereby market risk will also rapidly decrease. 2) Entrepreneur mythology as we know it is wrong (aka Steve Jobs is not what he seems). Iconic innovators ala the founders of Apple are believed by the public to be successful because of their creative vision of the future. The Lean Startup shows that in order for founders to be successful, they must test each element of there vision against reality. 3) Demystifying startup metrics. Even in a startup mecca like NYC, few entrepreneurs understand the metrics that drive their business. Eric's Innovation Accounting paradigm will change the early-stage VC industry as we know it. **What I like about the book: 1) Comprehensive and a pleasure to read. 2) Real world examples (case studies) from tech startups to the non-profit industry. You will not find anything like these in other books. 3) Case studies in chapters 6 & 7 alone are worth the price of the whole book. **What I don't like: 1) The chapter titles are a bit confusing and non-descriptive. 2) I could see some savvy entrepreneurs getting bored with the beginning when there's really great content in the later chapters. But if you're new to Lean Startup, the beginning chapters are a perfect introduction for you. 3) Some of the sources are outdates. I recently checked the links at the back of the book and gotten a couple 404's, but after searching on Google was able to find the sources. (this might be fixed now, not sure) **Final Words As someone who is very active on the latest research into innovation and entrepreneurship as well as an long-time entrepreneur myself, I love Eric's book and think that it's going to become a true classic and stand out as THE business book to read in 2011-2012. Don't listen to the haters, just look at the reviews from people like Marc Adreesen (founder of Netscape) and Dustin Moskovitz (cofounder of Facebook), these people don't endorse you unless you you are the real deal. Eric & The Lean Startup are the real deal.

With The Lean Startup , Eric Ries has produced a truly interesting, engaging book that is valuable for anyone seeking to drive innovation. In fact, given the intense scrutiny that venture capitalists purportedly have towards startups these days, this book might actually be more applicable to larger organizations and those who want to be better intrepreneurs. The Lean Startup , as the title suggests, guides the reader in the application of Lean principles in a software startup. A startup, according to Ries, is "... a catalyst that transforms ideas into products." And the products that a startup builds, "are really experiments; the learning about how to build a sustainable business is the outcome of those experiments." As part of this Ries advises us to avoid sub-optimizing individual functions, favoring working through what he calls the Build-Measure-Learn feedback loop in a specific way. Ries' point is that, "... the goal is not to produce more stuff efficiently. It is to--as quickly as possible--learn how to build a sustainable business." In the context of applying the principles of the Lean Startup, what matters is how quickly you can get through the entire Build-Measure-Learn loop. The first step is to enter the Build phase as quickly as possible with a minimum viable product (MVP), a minimum viable product being a minimalist implementation, and most likely lacking in features that "may prove essential later on." The goal is to generate feedback and data from real customers as quickly as possible in the form of validated learning. Once you have completed one Build-Measure-Learn loop, The Lean Startup tells us that we will face a choice: pivot the original strategy or persevere. A pivot can be essential to success, but it is not change for the sake of change. It is "...a special kind of structured change designed to test a new fundamental hypothesis about the product, business model, and engine of growth." Too often, companies stick with executing bad plans--doing the wrong thing well. As The Lean Startup points out, "there is no bigger destroyer of creative potential than the misguided decision to persevere. Companies that cannot bring themselves to pivot to a new direction on the basis of feedback from the marketplace can get stuck in the land of the living dead, neither growing enough nor dying, consuming resources and commitment from employees and other stakeholders but not moving ahead." Overall, I found The Lean Startup to be very well written, and it paints an excellent picture on the subject of applying the principles of Lean thinking to software product development.

This book is a good introduction to the Lean Startup approach to building and launching products for new markets. This book draws upon numerous works that have addressed the dynamics of new markets, discovering what customers really want, fact-based decision making and lean manufacturing. What is interesting is the way Lean Startup brings these ideas together into a cohesive and powerful framework. A framework built around a fundamental insight: building a new products for a new market should be considered a high risk experiment. Or rather, a series of experiments that successively prove (or disprove) whether we are building products that customers actually want. So, make assumptions explicit, test them vigorously, learn, repeat. Iterate through this loop as quickly as possible by deploying cross functional teams that build the product in small batches. I have launched new products at startups and established companies. I have lived through the dysfunction of silo-ed teams guessing what customers want and then investing in long development cycles before they find out the truth, if ever. So personally, I find Lean Startup ideas appealing and at least worth attempting. Teams that have gone through the process of adopting agile and lean for software engineering will recognize many of the rationales and principles laid out on this book. They will also realize that they implemented those principles too narrowly to be truly effective. Limiting lean and agile practices to just product engineering does not solve the dysfunction in other areas that are equally important for market success. My concern is whether this approach will doom teams to only make small incremental improvements that can be readily tested. Will it stifle intuition and courage to make big, bold decisions? Will 'let's test it' become a crutch for people who don't have the guts to make a call based on incomplete information (and information needed for big decisions will always be incomplete)? Time will tell. The Lean Startup movement is still in it's early days. I should point out that the book lacks specific ideas on how to implement the Lean Startup approach. The book has several high level stories, but very few methods, techniques and practices that can be readily implemented. This can be a bit frustrating if you are trying to imagine what Lean Startup ideas look like in action. Ries explains why specifics are missing at the very end of the book. The Lean Startup approach itself is an experiment! It is in its early stages and there is a lot of learning needed to implement it in a repeatable fashion. Further, the emphasis on learning means that any existing method should be continuously questioned, improved or even transformed. Ries says he does not want the movement to be reduced to a set of prescribed methods and tactics. Instead, he recommends joining a community of practitioners to learn how to implement Lean Startup ideas. Another ding against this book is a chapter on how established companies can nurture innovation. Ries feels out of his element on this topic and puts forth a series of that either value or akin to motherhood and apple pie. But it doesn't matter, because this book is really for technology start-ups. And for them it does put forth some fundamentally insightful ideas that will make any entrepreneur pause and reconsider the traditional approach.

After reading Clayton Christensen, Geoffrey Moore and Steve Blank, I was expecting a lot from The Lean Startup by Eric Ries. I was disappointed. It could be that I did not read it well or too fast, but I was expecting much more. But instead of saying what I did not like, let me begin with the good points. Just like the previous three authors, Ries shows that innovation may be totally counterintuitive: "My cofounders and I are determined to make new mistakes. We do everything wrong. We build a minimum viable product, an early product that is terrible, full of bugs and crash-your-computer-yes-really stability problems. Then we ship it to customers before it's ready. And we charge money for it. After securing initial customers, we change the product constantly. [...] We really had customers, often talked to them and did not do what they said." [page 4] On page 8, Eric Ries explains that the lean startup method helps entrepreneurs "under conditions of extreme uncertainty" with a "new kind of management" by "testing each element of their vision", and "learn whether to pivot or persevere" using a "feedback loop". This is he Build-Measure-Learn process. He goes on by explaining why start-ups fail: 1- The first problem is the allure of a good plan. "Planning and forecasting are only accurate when based on a long, stable operating history and a relatively static environment. Startups have neither." 2- The second problem is the "Just-do-it". "This school believes that chaos is the answer. This does not work either. A startup must be managed". The main and most convincing lesson from Ries is that because start-ups face a lot of uncertainty, they should test, experiment, learn from the right or wrong hypotheses as early and as often as possible. They should use actionable metrics, split-test experiments, innovation accounting. He is also a big fan of Toyota lean manufacturing. I loved his borrowing of Komisar's Analogs and Antilogs. For the iPod, the Sony Walkman was an Analog ("people listen to music in a public place using earphones") and Napster was an Antilog ("although people were willing to download music, they were not willing to pay for it"). [Page 83] Ries further develops the MVP, Minimum Viable Product: "it is not the smallest product imaginable, but the fastest way to get through the Build-Measure-Learn feedback loop." Apple's original iPhone, Google's first search engine, or even Dropbox Video Demo were such MVPs. More on Techcrunch [page 97]. He adds that MVP does not go without risks, including legal issues, competition, branding and morale of the team. He has a good point about intellectual property [page 110]: "In my opinion, [...the] current patent law inhibits innovation and should be remedied as a matter of public policy." So why did I feel some frustration? There is probably the feeling Ries gives that his method is a science. [Page 3]: "Startup success can be engineered by following the right process, which means it can be learned, which means it can be taught." [Page 148]: "Because of the scientific methodology that underlies the Lean Startup, there is often a misconception that it offers a rigid clinical formula for making pivot or persevere decisions. There is no way to remove the human element - vision, intuition, judgment - from the practice of entrepreneurship, nor that would be desirable". I was probably expecting more recipes, as the ones Blnak gives in The Four Steps to the Epiphany. So? Art or science? Ries explains on page 161 that pivot requires courage. "First, Vanity Metrics can allow to form false conclusions. [...] Second, an unclear hypothesis makes it impossible to experience complete failure, [...] Third, many entrepreneurs are afraid. Acknowledging failure can lead to dangerously low morale." A few pages before (page 154), he writes that "failure is a prerequisite to learning". Ries describes a systematic method, I am not sure it is a science, not even a process. Indeed, in his concluding chapter, as if he wanted to mitigate his previous arguments, he tends to agree: "the real goal of innovation: to learn that which is currently unknown" [page 275]. "Throughout our celebration of the Lean Startup movement, a note of caution is essential. We cannot afford to have our success breed a new pseudoscience around pivots, MVPs, and the like" [page 279]. This in no way diminishes the traditional entrepreneurial virtues; the primacy of vision, the willingness to take bold risks, and the courage required in the face of overwhelming odds" [page 278]. Let me mention here a video from Komisar. Together with Moore and Blank, he is among the ones who advise reading Ries' book. I am less convinced than them about the necessity to read this book. I have now more questions than answers, but this may be a good sign! I have been more frustrated than enlightened by the anecdotes he gives or his use of the Toyota strategy. In na interview given to the Stanford Venture Technology program, Komisar talks about how to teach entrepreneurship. Listen to him! To be fair, Eric Ries is helping a lot the entrepreneurship movement. I just discovered a new set of videos he is a part of, thanks to SpinkleLab. Fred Destin had also a great post on his blog about the Lean Startup and you should probably read it too to build your own opinion. Lean is hard and (generally) good for you. Fred summaries Lean this way and he is right: "In the real world, most companies do too much development and spend too much money too early (usually to hit some pre-defined plan that is nothing more than a fantasy and / or is not where they need to go to succeed) and find themselves with an impossible task of raising money at uprounds around Series B. So founders get screwed and everyone ends up with a bad taste in their mouth. That's fundamentally why early stage capital efficiency should matter to you, and why you should at least understand lean concepts." Let me finish with a recent interview given by Steve Blank in Finland: "I have devoted the last decade of my life and my "fourth career" to trying to prove that methods for improving entrepreneurial success can be taught. Entrepreneurship itself is more of a genetic phenomenon. Either you have the passion and drive to start something, or you don't. I believe entrepreneurs are artists, and I'd like to quote George Bernard Shaw to illustrate: "Some men see things as they are and ask why. Others dream things that never were and ask why not." Over the last decade we assumed that once we found repeatable methodologies (Agile and Customer Development, Business Model Design) to build early stage ventures, entrepreneurship would become a "science," and anyone could do it. I'm beginning to suspect this assumption may be wrong. It's not that the tools are wrong. Where I think we have gone wrong is the belief that anyone can use these tools equally well. When page-layout programs came out with the Macintosh in 1984, everyone thought it was going to be the end of graphic artists and designers. "Now everyone can do design," was the mantra. Users quickly learned how hard it was do design well and again hired professionals. The same thing happened with the first bit-mapped word processors. We didn't get more or better authors. Instead we ended up with poorly written documents that looked like ransom notes. Today's equivalent is Apple's "Garageband". Not everyone who uses composition tools can actually write music that anyone wants to listen to. It may be we can increase the number of founders and entrepreneurial employees, with better tools, more money, and greater education. But it's more likely that until we truly understand how to teach creativity, their numbers are limited. Not everyone is an artist, after all."