Physician and author Kenneth Iserson, M.D. Iserson wanted to promote organ and tissue donation. So he wrote a book about what happens to dead bodies. It's called "Death to Dust" (Galen Press). Iserson believes that death is the pornography of our culture. He says that after-death activities are shrouded in secrecy. His book explores the mundane--burial choices and advance directives--and the arcane--head shrinking, cannibalism and cryonic preservation.