Charles L. Blum, DC, CSCP has been in private practice Santa Monica, California, since 1981. He is an adjunct research faculty at Cleveland Chiropractic College – Los Angeles and associate faculty at Southern California University of Health Sciences. He is also a certified Sacro Occipital Technique cranial practitioner, and on the peer review board of the Journal of Vertebral Subluxation Research and Journal of Chiropractic Medicine. He has lectured internationally, has written SOT-related texts, compiled SOT and cranial research, and extensively publishes in several peer-reviewed journals and at research conferences.