“The Entrepreneur’s Guide is an easy read. It is written in a conversational tone, doesn’t take itself too seriously, and avoids extraneous fluff.”

— Eric Ries, creator of The Lean Startup® framework, author of The Lean Startup

“Get the CustDev book to dive deep into customer interviews and understand how your product can be developed to meet your customers' needs.”

— Dan Martell, founder of Flowtown, angel investor

“I recommend it. ”

— Kevin Taylor, Director of Talent Development at Groupon, DePaul University instructor

“A great job of making Customer Development process and jargon easily understandable. This is for entrepreneurs who are too busy to geek out on Lean, but want to dig deeper into what Customer Development can do for them. A great starter and companion to Four Steps.”

— Salim Virani, Creator of Leanca.mp