Books like Basic Principles of Classical Ballet
Agrippina Yakovlevna Vaganova
Basic Principles of Classical Ballet is 171 pages, about 3 hours 8 minutes at 250 words a minute.
6 books to read next
How long each takes
Classical Ballet Technique 7.3 h 
100 Lessons in Classical Ballet 7.3 h 
Apollo's Angels 12.3 h 
The Art of Teaching 4.9 h 
Ballet Basics 3.3 h 
Inside Ballet Technique 2.3 h Bar height shows length. Estimated at 250 words a minute.