Book · ~330 pages

The Lean Startup

Eric Ries · theleanstartup.com Paid Beginner

Ries gives you a working method for reading weak signals instead of guessing: build a small test, measure how real people respond, and learn fast enough to change course before a year is gone. Its most useful idea for this question is validated learning and the pivot-or-persevere call, a concrete way to decide whether an idea is worth continuing. Read it as a discipline for catching a dead-end early, not as a growth-hacking manual.

• Validated learning means progress is measured by what you have actually confirmed with customers, not by how much you have built.
• The build-measure-learn loop is meant to shorten the time between an assumption and honest feedback on it.
• Pivot or persevere is a scheduled, evidence-based decision, so you are not drifting on an idea by default.