I finished the book recently and I cannot recommend it enough. The bragging sometimes shows through the stories and the end of the book feels like a clever marketing about his company. But the book is well written, well structured, stories are good, and each chapter brings new techniques. The book changed the way I handle communication. There are actionable practical tips and tools for communication and it shaped how I think about a hard phone call, how to prepare for a meeting and how to push coffee chitchat at work in more interesting directions. You will have to ignore more self-centered persons in your life than this book's author anyway, take it as a practice lesson :) And to Chris Voss defense he also talks about examples he made mistakes.