Lungeing and Long-Reining by Jennie Loriston-Clarke

Lungeing and Long-Reining is a step by step guide to training, exercising and suppling horses from the ground, written by Britain's leading exponent of the art. 
The book begins with advice on Handling untrained youngsters and works through a logical training progression, culminating in advanced dressage movements. Straightforward guidance is given on
Training foals and young horses
Lungeing equipment and technique
Introducing long-reins and early lateral work
Backing and riding young horses
Lungeing over poles and fences
Advanced long-reining - including cantering, rein-back, shoulder-in, travers, half pirouettes, half-pass, renvers, canter half-pass, canter pirouettes and tempi flying changes.
Piaffe and passage