“Peak: Secrets from the New Science of Expertise” is a book written by Anders Ericsson and Robert Pool. It is a guide for developing expertise in any field, based on the latest research on the science of expertise and high performance.

The book introduces the “10,000-hour rule,” which is the idea that it takes approximately 10,000 hours of deliberate practice to achieve mastery in any field. It argues that expertise is not the result of innate talent, but rather the result of consistent and focused practice over a long period of time.

The book provides a step-by-step guide for developing expertise, based on the latest research and case studies. It covers topics such as how to set clear and measurable goals, how to practice effectively, and how to overcome common obstacles to learning and improvement. The book also includes a number of practical tools and exercises to help readers apply the concepts in their own lives.

Overall, “Peak” is a well-written and informative book that offers valuable insights and strategies for developing expertise in any field. It is an excellent resource for anyone looking to improve their skills and achieve their full potential.