Ian Crofton was formerly editor-in-chief of The Guinness Encyclopedia and has written a wide range of other general reference books, including Philosophy (Teach Yourself Instant Reference), Science Without the Boring Bits, Brewer's Britain and Ireland and Brewer's Dictionary of Modern Phrase and Fable (2nd edition, both with John Ayto), A Dictionary of Musical Quotations (with Donald Fraser) and A Dictionary of Art Quotations.