https://www.serpentinegalleries.org/whats-on/david-hockney-a...

Currently on in the Serpentine Gallery in Hyde Park until the 23rd August.

I recently read his book Secret Knowledge on how many of the Old Masters may have used optics, and it's affected my thoughts every day I've looked at old paintings since then.

https://en.wikipedia.org/wiki/Hockney%E2%80%93Falco_thesis https://books.google.co.uk/books/about/Secret_Knowledge.html...