“Travel & Simon’s Myofascial Pain and Dysfunction Trigger Point Manual Vol I” is a comprehensive textbook written by authors Lois Simons and Janet Travell. Published in 1999 by Lippincott Williams & Wilkins, this advanced-level book focuses on the subject area of medical trigger point therapy. The hardcover format and English language make it accessible to adult and further education students seeking to learn about injection therapy techniques. This manual is a valuable resource for those interested in understanding and treating myofascial pain and dysfunction.