Observations On Trance: Or Human Hybernation is a book written by James Braid in 1850. In this book, Braid examines the phenomenon of trance or what he calls ""human hibernation"". He delves into the various states of consciousness that humans can experience and how hypnosis can be used to induce these states. Braid also discusses the history of hypnosis, its uses in medicine, and its potential for therapeutic purposes. He provides case studies and...