Upon retiring from a busy 40 year medical career, Dr. Cohen sought out a mind stimulating activity. Writing books seemed like a good idea, but how to start? Especially since the only previous writing emanating from the author were patient medical reports. Fifteen years ago, at age 68, the "young" author sat down and started work on a medical murder mystery that had been incubating in his mind for many years prior to retirement. Four years of writing activity resulted in Brainstorm. Lo and behold, a publisher accepted the book, worked to publish it for many months-and declared bankruptcy. Welcome to the publishing world! Not dissuaded and fascinated by writing art and science, the next ten years saw many self-published print books pouring out of the author's computer followed by so 36 books in multiple genres including: Historical Fiction (World War II and Jewish history), Historical Fiction (nuclear bomb development), Fiction (medical murder mysteries), Fiction (medical diagnostic puzzle), Non-Fiction (medical), Fiction (terrorism), History (terrorism), History (physics), Healthcare, Autobiography, Children Story Poems. The author will continue writing as long as the years permit.