Albert Hofmann (January 11, 1906 – April 29, 2008) was a Swiss scientist known best for being the first person to synthesize, ingest, and learn of the psychedelic effects of lysergic acid diethylamide (LSD). Hofmann was also the first person to isolate, synthesize, and name the principal psychedelic mushroom compounds psilocybin and psilocin. He authored more than 100 scientific articles and numerous books, including LSD: Mein Sorgenkind (LSD: My Problem Child). In 2007, he shared first place, alongside Tim Berners-Lee, in a list of the 100 greatest living geniuses, published by The Telegraph newspaper.