Grenville Kleiser (1868-1935) was a North American author. He was the author of a long list of inspirational books and guides to oratorical success and personal development. Kleiser also worked as an instructor in Public Speaking at Yale Divinity School, Yale University. In this book: Successful Methods of Public Speaking, 1919 Model Speeches for Practise, 1920 The Training of a Public Speaker, 1920 The World's Great Sermons Volume I, 1908 The World's Great Sermons, Volume 2, 1908 The world's great sermons, Volume 3, 1908