Confessions of an English Opium-Eater 
(Thomas De Quincy, 1822)

At age 37 Thomas De Quincy (1785-1859) published this account of his youthful addiction to opium, his first book. It became a run away best seller overnight and was denounced in the Parliament.Since then it has become the paradigmatic drug text, referenced by writers as diverse as Charles Baudelaire, William Burroughs, Hunter Thompson and David Bowie. 

https://archive.org/details/confessionsofane02040gut