John Barber is a professional artist and designer whose work has been published by many leading publishers worldwide. His interest in art and design have led to diverse commissions, including model-making for film and TV, sculpture, and stained glass design, in addition to painting. He has lectured widely on Turner and Rembrandt, and regularly teaches painting courses near Flatford Mill in Suffolk and in La Rochefoucauld, France. John lives in London. He is the author of The Watercolor Wheelbook, Color Pencil Wheel Book, Oil Paint Color Wheel Book, Acrylics Color Wheel Book, and Pastel Color Wheel Book.