Contains meticulous detail on all his oil paintings, watercolours, drawings and sketchbooks, and is free for non-commercial use.
catalogue raisonné
This is a superb and definitive book, which serves almost every purpose, except portability. It is worth every penny of its high cost.
They are to the study of art what a dictionary and grammar are to the study of a language, and a basic building block for our cultural heritage.
The Eclectic Light Company 