There are two masters in dressage during history that not only teached their pupils but also made an effort to write down their knowledge in a book, Xenofon and de la Gueriniere. Xenofon took many things as given and he put the focus on how to handle the horse in a gentle way. Now that many of the knowledge he took for given have been lost still his teaching is modern and when compared to a lot of 20th century books on dressage I would call him revolutionary!This edition includes both Xenofons book but also historical essays on tacking and other things in ancient greece.