The Companion to British History is a single-volume encyclopaedic reference work written by Charles Arnold-Baker and edited by his son Henry von Blumenthal.[1] It was published by Longcross Press in 1996, and described by The Spectator as "arguably one of the most remarkable books ever written".[2] The Second Edition was published by Routledge. The Daily Telegraph, in an account of how the book came to be written, described it as being "bigger than a foundation stone, longer than the Bible".[3]