Her first two books, Children's Past Lives (Bantam, 1997) and Return from Heaven (HarperCollins, 2001), about reincarnation, have been published in more than twenty three foreign languages. Bowman has also been a practicing past life regression therapist for adults for more than twenty-five years. She studied with pioneers in the field of past life regression, and holds an M.S. in counseling from Villanova University, after graduating from Simmons College in Boston.
She has been a leading spokesperson for children's past lives since the publication of her books. She has appeared on many TV and radio programs, including Oprah, Good Morning America, Unsolved Mysteries, ABC Primetime, "The Katie Couric Show", and The Art Bell Show, as well as shows on A&E, Discovery Channel and the BBC. She has lectured in Norway, Belgium, Spain, Ireland, and the Netherlands, and has spoken at the Omega Institute and for the Edgar Cayce Foundation.
Bowman's book Children's Past Lives received a positive review from Publishers Weekly and was recommended to readers of the new age community. However, philosopher and skeptic Robert Todd Carroll heavily criticized the book and described it as a "firsthand testimony to ignorance of science, to gullibility and, above all, to wishful thinking."