This comprehensive and richly illustrated volume is the first-ever history of British medieval illuminators' pigments. It rests on first-hand investigation, with optimal scientific techniques, of a wide selection of manuscripts, ranging in date from the 17th century to the 15th. It provides an authoritative, engaging and accessible guide to this understudied field, for historians, art historians, librarians, conservators, heritage scientists, and anyone interested in the art, culture and techniques of book illumination.