Training and Riding with Cones and Poles, by Sigrid Schope
Ground poles do not always have to be used in conjunction with jumping, nor do cones restrict their use to driving maneuvers. Learn from this German horsewoman what you can do to sharpen the skills of both you and your mount with these training aids. Useful for both in-hand and mounted work, the exercises give you both a new twist on tired patterns. 

Hardcover, 91 pages, spiral bound