"Sprint" by Jake Knapp, with John Zeratsky and Braden Kowitz, outlines a five-day process for solving critical business questions through design, prototyping, and testing ideas with customers. Developed at Google Ventures, the sprint methodology enables teams to quickly move from problem identification to a tested solution, significantly accelerating the innovation process. The book provides a detailed, day-by-day guide on how to conduct a sprint, complete with practical advice, tools, and real-world examples from startups and established companies. It's an invaluable resource for designers, product managers, and entrepreneurs looking to efficiently tackle big challenges and validate ideas in a short timeframe.