"The Lean Startup" by Eric Ries offers a methodology for entrepreneurs and established companies to innovate more efficiently.

The core of this approach is the Build-Measure-Learn feedback loop, emphasizing validated learning through experimentation and customer interaction to test business assumptions.

The book advocates for creating a minimum viable product (MVP) to gather early feedback and using actionable metrics to track progress.

It introduces the concept of innovation accounting and provides guidelines for deciding when to pivot or persevere with a business strategy.

Ries also covers the importance of small batches, continuous deployment, and adaptive organizations to maintain agility as a startup grows.

The book stresses the importance of experimentation and challenges traditional management practices that can hinder innovation.