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AI Summary
- Jake Knapp has helped build Gmail, Microsoft Encarta, and Google Meet while advising major companies like Slack, Miro, and NASA on product strategy
- His new book Click provides a 12-lesson playbook and step-by-step framework to identify customers, their problems, product differentiation, and rapid testing for product-market fit
- Knapp emphasizes that for zero to one startups, finding product-market fit isn't everything—it's the only thing, requiring founders to stop guessing and start building what people truly need