You can read this book overnight. Ed Wohlmuth’s advice, delivered in a breezy, optimistic style, will help your speech. His approach is a bit “show biz,” but you can modify that element to your own taste. When I had to give a three hour class recently I followed his suggestions, which included revising my remarks into a more informal style, consciously inserting some “signals” into the presentation and corraling a friend into letting me practice my talk on him the night before. Result: The class went well and everyone enjoyed themselves, including me. This book works.