"The Book of Why: The New Science of Cause and Effect" by Judea Pearl and Dana Mackenzie is a book that explores the groundbreaking work of Judea Pearl in the field of causal inference. Pearl, a Turing Award-winning computer scientist, argues that traditional statistics and machine learning are limited in their ability to understand cause and effect. He introduces a new framework for causal reasoning, known as the "Ladder of Causation," which categorizes different levels of causal understanding. The book delves into the implications of this new science for various fields, including artificial intelligence, medicine, and social sciences. Pearl and Mackenzie also discuss the philosophical implications of causal reasoning, exploring questions about free will, determinism, and the nature of reality. "The Book of Why" aims to revolutionize our understanding of cause and effect, providing a powerful tool for making better decisions and understanding the world around us.