Rosalind Ormiston is a researcher, lecturer and author in art, architecture and design history. She lectures in art and architectural history at Kingston University, London. Her recent publications include Colour Source Book, Alphonse Mucha: Masterworks, Art Deco: The Golden Age of Graphic Art and Illustration; Michelangelo: His Life and Works in 500 Images and Leonardo da Vinci: His Life and Works in 500 Images.

Nicholas Michael Wells has written on William Blake, ancient and medieval art and a number of other fine and decorative art subjects. He has also written the Collins Gem on Time and over 25 of practical music books under the pseudonym Jake Jackson. Having obtained his degree in English Literature at the University of Kent in Canterbury he now lives in London with his partner and children. He runs his own creative business and is a writer, painter, designer, poet and musician.