Download or read book Mastering Variable Surface Tracking Book & Workbook Set written by Ed Presnall and published by . This book was released on 2003-07 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Are you looking for a new challenge for your tracking dog? Try the AKC sport of Variable Surface Tracking or VST, a tracking sport that can be done in an urban setting. "Component training" breaks down skills for ease of learning. Includes a workbook.