The video clips below are an excellent introduction to Myofascial Release, please take a look.
These two video clips are an excellent introduction to Myofascial Release (for both therapists and clients) by one of its originators, Physical Therapist, John Barnes. I have specialised in this technique for the last 16 years.
This clip is an introduction of Rolfing (another form of Myofascial Release) by Charles Sieman. Please note that this clip is quite old.