Proposes a scientific approach to entrepreneurship: build-measure-learn feedback loops, validated learning, and pivoting. Case studies from tech startups show how to minimize waste and scale efficiently.

Ries' 'MVP' concept is both praised and mocked—detractors argue it encourages half-baked products, while fans credit it for democratizing innovation. The 'pivot or persevere' dilemma sparks heated debates on risk management.

Clear step-by-step methodology; ideal for agile-minded hustlers; emphasizes actionable metrics over vanity metrics.

Overly tech-centric examples; less applicable to traditional industries without digital components.