The book delves into the two systems that drive the way we think—System 1, which is fast and intuitive, and System 2, which is slow and deliberate. The author, a Nobel laureate, explores how these systems shape our judgments and decision-making. He presents several groundbreaking experiments that have shaped our understanding of human thought, revealing where we can trust our intuitions and how we can tap into the benefits of slow thinking. The book also discusses how our cognitive biases often lead to errors in judgment and affect our decision-making processes.

The book is a poignant and deeply personal memoir that delves into the heart-wrenching experience of a mother grappling with her son's severe mental illness and eventual suicide. Through a raw and honest narrative, the author explores the complexities of her son's struggle with depression, the impact of his condition on their family, and the profound grief that follows his tragic death. The memoir serves as a meditation on loss, love, and the often misunderstood nature of mental health, offering a touching tribute to her son while also shedding light on the broader issues surrounding mental illness and the challenges faced by those who suffer from it and their loved ones.