Coincidance: A Head Test

This, for my money, is the most spectacular non-fiction work that Wilson ever penned, breathtakingly adventurous in both its content and its strikingly experimental form. Uncertain and demonstrably uncaring whether it’s a piece of literary criticism, metaphysical discussion or anthology of diverse esoteric writings, this remarkable compendium is best seen, in the spirit of its title, as a glorious accidental dance of meaning, modernism and mythology. 
- Alan Moore, from his introduction to Coincidance