Start with high-confidence massage therapy books, then narrow by subgenre or adjacent topics.
Integrative Therapies for Fibromyalgia, Chronic Fatigue Syndrome, and Myofascial Pain
Celeste Cooper R.N., Jeffrey Miller Ph.D.
The Trigger Point Therapy Workbook
Clair Davies NCTMB, Amber Davies CMTPT LMT
Rehab Science: How to Overcome Pain and Heal From Injury
Tom Walters, Glen Cordoza
Pain-free Performance
John Rusin, Glen Cordoza
Bone on Bone
Meredith Warner
Built From Broken
Scott Hogan, Scott H Hogan