The first authorized copy of this mysterious, much-speculated-upon, one-of-a-kind, centuries-old puzzle. The Voynich Manuscript is produced from new photographs of the entire original and accompanied by expert essays that invite anyone to understand and explore the enigma.

Many call the fifteenth-century codex, commonly known as the "Voynich Manuscript," the world's most mysterious book. Written in an unknown script by an unknown author, the manuscript has no clearer purpose now than when it was rediscovered in 1912 by rare books dealer Wilfrid Voynich. The...