This document is a book review of Maverick! by Ricardo Semler, which describes his leadership of Semco. It summarizes Semler's views on effective leadership, including creating respect through reducing hierarchy and encouraging participation. It also examines Semco's approach to leadership development, which focuses on self-assessment, transparency, empowerment at all levels through self-managing teams, and informal training. While some of Semco's practices contradict traditional models, the company has been highly successful with its unique approach.