Author Ed Presnall is the author of Mastering Variable Surface Tracking: The Component Training Approach and 8 other books, creator of the Component Training method, founder of Component Training C...visualizza altroAuthor Ed Presnall is the author of Mastering Variable Surface Tracking: The Component Training Approach and 8 other books, creator of the Component Training method, founder of Component Training Camps, The Ultimate Tracking Experience and a tracking judge for all levels. He lives with his dogs in Albion. Michigan.visualizza meno