"Confessions of an English Opium-Eater" is a memoir by Thomas De Quincey, first published in 1821. The book describes De Quincey's experiences with opium and his struggles with addiction. De Quincey was a well-known English essayist and literary critic, and his memoir is regarded as a landmark work in the history of drug addiction literature. In the book, he describes how he first became addicted to opium, initially as a means of managing chronic pain. He then details the physical and psychological effects of his addiction, including vivid dreams and hallucinations. De Quincey also provides a detailed account of the social and cultural context of opium use in 19th century England, including the widespread use of laudanum, a preparation of opium in alcohol. "Confessions of an English Opium-Eater" has been praised for its poetic style and its insights into the nature of addiction. The book has had a significant influence on later drug addiction literature, including the works of writers such as William S. Burroughs and Charles Bukowski. De Quincey continued to write prolifically throughout his life, producing essays on a wide range of topics, including literature, philosophy, and politics. He died in 1859, at the age of 74.