The book is great for those looking to get into horseback riding again from square one. It serves as a comprehensive guide for dressage basics and beyond.
clear, simple explanations
It misses more nuanced topics.
The information misses on that but provides a simple teaching.
"Clear, simple explanations, I found great and interesting. This fellow suggested insights on how things will work best in a real-world horseback riding competition instead."
"As a veteran horseback riderity enthusiast I found it lacks on it depth on the topics required to the dressage basic teaching, It serves as simple recap and not an advance studies."
Given the content and user satisfaction, you may expect the book to achievable for completing the lessons in the content.