If you want to avoid spending too much time and investments on ideas that don’t work, dive into this book. #Sprint, how to solve big problems and test new ideas in just 5 days. The book is easy to read, very structured and entertaining. It offers good methodologies for strategy, ideation, quick scanning thought prototyping and testing. Some take- aways from the book and very helpful for #productmanagers as well: 1. Don’t jump into solutions, map out the problem and agree on a