Here are some more of my favorite books about reincarnation and past lives.
Many Lives, Many Masters: The True Story of a Prominent Psychiatrist, His Young Patient, and the Past Life Therapy That Changed Both
Their Lives by Dr. Brian L. Weiss.
Life Before Life: Children's Memories of Previous Lives by Jim B. Tucker
of Heaven: Children's Astounding Recollections of the Time Before They Came to Earth by Dr. Wayne W. Dyer and Dee Garnes.