I have done past life regressions. Trained and certified as a Hypnotist, also Doloras Cannon had great influence along with Brian Weiss his book Many Masters, Many Lives.

One client had moved thru 5 lives during our session. Past, Present and Future. It was amazing.
Doloras teaches a technique that allows you to go to the higher consciousness , what comes thru is always for the person's higher good.

Her series Convoluted Universe (4 books, very large books) is excellent if that is the type of subject you enjoy reading about. Her books can be found on /at Ozark mountain Press, I believe...google her name...she has been around for years.She has a very interesting history, also. She originates from St Louis , Missouri but now resides in Arkansas. Regression is her specialty, she travels the world teaching her Quantum Healing Technique. Oh by the way she is 81 as of December 2012, she hasn't just stumbled into this. She is the real deal.