I have added a page of free art reference books & e-books on my website http://www.artiscreation.com/books.html. These are all 100% Free and 100 % legal downloads of great historical books on oil painting techniques, water color techniques, color theory, anatomy, figure drawing and making paints & pigments, some written by the old masters themselves. Most of these books are as pertinent to modern times as they were when they where created. They also can give great insight on the techniques and processes of the old masters. There are also many modern books as well, released free to the public, with some having unique and hard to find information on pigments with the latest studies of the great masters works from universities and art conservators. Most are available in PDF format or viewable online, and almost all are even available in formats for the kindle and and other eBook readers. Have fun, it really is worth checking these out.