This review was first posted to Goodreads on May 11th, 2020. I can rate this before getting anywhere near the last page because it’s a parallel of two BBC documentaries made in 2001 that details Hockney’s theory that many of the old masters used contemporaneously new technology as drawing and painting aids. The camera lucida for instance that allows for an image to be visible within a lens positioned over paper and that the artist can see to ‘trace’, and later the camera obscura that uses a larger lens to project an image onto a canvas or wood support in … Continue reading Book review: Secret knowledge – rediscovering the lost techniques of the old masters. David Hockney