Check out Steve Blank's new book The Startup Owner's Manual: The Step-by-Step Guide for Building a Great Company. (Click the link to order it on Amazon).
If you're an entrepreneur with a startup, then you need to know who this man is. Blank's older book, The Four Steps to the Epiphany: Successful Strategies for Products that Win, spells out the Customer Development model used in numerous startups. He claims that what makes a startup successful is that they uniquely survive those first, make-it-or-break-it years by following a process of "customer learning and discovery", rather than the traditional product development model.
Create a great product that makes your customers happy, have a successful business.
His new book, The Startup Owner's Manual, is a guide for outlining this Customer Development process when building your startup. It's two main sections, Customer Discovery and Customer Validation, help turn your entrepreneurial vision into a scalable- and repeatable- business model. Meant to be read like a car repair manual rather than a novel, this book will walk you through the entire startup process to "develop winning products customers will buy".