Book Thumbs Up! Wartime Crowley work centered on a ritual invocation, produced during the Second World War. ← Thelema AuthorAleister Crowley TypeBook Written1941 Edition1941 PublisherPublished by the author / O.T.O. (printed by The Chiswick Press Ltd., London) LanguageEnglish Tradition Thelema Where to find it 100th Monkey Press — Crowley bibliography: Thumbs Up! A Pentagram (1941) Goodreads — Thumbs Up: A Pentagram - A Pantacle to Win the War (Aleister Crowley)