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This book is a description of Hockney’s theory about how Western painters as far back as the 15th century are likely to have used what he describes as “optics”, meaning lenses and mirrors, as an aid to painting accurately. It is divided into three parts. In the first there is a description of his thesisContinueContinue reading “Book Review David Hockney – Secret Knowledge: Rediscovering the Lost Techniques of the Old Masters”