How does the habitual consumption of opium alter the perception, memory, and creative output of an individual? Thomas De Quincey, a nineteenth-century intellectual and essayist, provides a detailed account of his own addiction to laudanum. He examines the physiological and psychological effects of the drug, framing his personal history within the broader context of Romantic-era literary culture and the subjective experience of altered states of consciousness.

Scholars recognize this work as a foundational text in the genre of addiction literature and autobiographical prose. Readers frequently note the dense, ornate, and highly stylized nature of the author's prose, which reflects the intellectual preoccupations of the early nineteenth century.