This book resonates in me more than any other book on the subject. Weinberg forces you to participate in the exploration of how a technical leader is created, and he provides *real steps* on how to get there. He also provides many short exercises for you to test your progress in your day-to-day activities.
While reading this book, I had several major realizations about work relationships, why people react they way that they do, and how to motivate them. The title of the book uses the term "Organic" to describe this process, and it is a very valid claim because many of the leadership qualities are not masks that you put on or tricks that you acquire. Instead, they are internal realizations and shedding of misconceptions and assumptions that currently prevent you from being an effective leader. Cathartic in a self-help kind-of a way.
This is highly recommended reading for technical folks in leadership positions, or those who are looking to become technical leaders. Weinberg includes many stories and examples which carify each chapter. The book is a very easy read.