This book is quite simply the best book on public speaking I've ever read, and I've read quite a few. The subtitle ("All you need to know about making speeches and presentations") is accurate. I consider myself a very experienced speaker, yet the author was able to give me plenty of new ideas and insights. His techniques, and analysis of what works and why, are easy to understand and practical. For me, this was a page-turner!
If anyone asked me to recommend just one book on public speaking, it would be this one.