You will find that this textbook is written in a conversational, easy-to-follow tone.
THE EGOSCUE METHOD OF HEALTH THROUGH MOTION: A By Pete Egoscue & Roger Gittines
This textbook is the one I used for my final year project research.
The Egoscue Method of Health Through Motion: A Re… by Gittines, Roger Hardback
You will find that this textbook breaks down difficult topics into manageable chunks.