The Mom Test
by Rob Fitzpatrick
Fitzpatrick's slim, practical book solves the single biggest problem first time founders face: they ask potential customers leading questions and mistake politeness for validation. This belongs first because everything else in the guide is wasted effort if you are building something nobody needs. It is short enough to read in a weekend and will save you months of misdirection.
Key takeaway
Never ask people if they would buy your product; instead, ask about their lives, their problems, and how they currently solve them, and let the data tell you whether to proceed.






