A one-stop guide to training aids outlines when they are useful and why they are an aid to training, not a substitute for it. Sound advice is offered on using training aids safely and their functions, pros and cons. Aids include martingales, the Market Harborough, the Chambon, elastic schooling reins, the de Gogue, draw reins, the Pessoa and Feeline systems, and more. Also addressed are training aids for riders. This handy book is an indispensable training aid in itself!