“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

“Quickest & best way to get your head around Customer Development. Read this first and then read The Four Steps to the Epiphany. ”

— Noah Kagan, Founder of AppSumo

“Simply the best way to introduce your team to Customer Development.”

— Rich Collins, Founder of Lean Startup Circle, Mac developer