The Master Keys: A Painter's Treatise on the Pictorial Technique of Oil Painting (Paperback)
Painting is not a vagabond's craft. From the 15th through the 17th Centuries, painters studied past techniques in order to evaluate the possibility of improvement through a process of logical progression. This book is divided into chapters (Keys) that explain each a major step forward in technique and propose the master to whom credit should be given.