Secret Knowledge order by David Hockney, 2001

David Hockney's 2001 book, Secret Knowlege, rediscoverying the lost techniques of the masters. Explains his extensive research about how the old masters used optical devices. Lenses and mirrors, to create verisimilitude order in their paintings. The book is full of examples showing in 460 color photographs of famous paintings by great painters where Hockney suspects optical devices were employed.

First edition. Published in USA by Viking Studio.
Hardback with original dust jacket. 295 pages.

Almost Perfect condition. Slight tear on corner of dust jacket.