This book review summarizes the key points of the book "Buy-In: Saving Your Good Idea from Getting Shot Down" by John P. Kotter and Lorna A. Whitehead. The book uses a fictional example of a town library committee discussing a proposal to provide computers to poor children to illustrate common cognitive biases and resistance to change. It then analyzes the different perspectives represented on the committee. The goal is to understand why good ideas often face resistance and how to increase buy-in from stakeholders. The review recommends reading the book to learn how to identify one's own cognitive biases, grapple with resistance to change, and effectively sell new ideas.