The Doors of Perception
First published in 1954, The Doors of Perception is a book about the author who ingests mescaline in May of 1953. This is a detailed account of his experience. He also includes his reflections after the experience. Heaven and Hell is an essay written in 1956 that is presently included in the book.
Aldous thoroughly describes his experience with mescaline with great clarity. His inquisitive thought process shines through his experience. Afterwards Huxley concludes with his reflections, leaving him with more to think about after this curious substance.
In 1956, Aldous Huxley and Humphry Osmond exchanged a series of letters in an attempt to find a term for types of experiences like the one in this book. In a letter to Huxley from Osmond, the word psychedelic was used for the first time.