Tom Rosenbauer is an excellent writer, speaker, and above all, fly fisherman. I have read many, many of his books, and listen to his podcast regularly. In this book, he has really knocked it out of the park! He takes 20 of the most commonly used fishing flies, and broken each one down into segments. It's history, how to tie it, and variations that you can introduce to it. The tying instructions are phenomenal. Whether you are a beginner, or have been tying flies for years, you can easily learn something here. I picked up a multitude of hints to improve my own tying. I have been fly fishing and tying my own flies for over forty years. I intend on keeping this book handy at my tying desk. And I will be buying additional copies for my fly fishing friends. I guess that alone tells you how much I enjoyed this book! (The book won't be available to the general public until September 1, 2021. I got an advance copy because I am a reviewer for various publishing companies).