Today is the 566th birthday of the artist and inventor Leonardo da Vinci. Years ago, I was lucky enough to see his notebook in person while

Today is the 566th birthday of the artist and inventor Leonardo da Vinci. Years ago, I was lucky enough to see his notebook in person while
David Hockney, OM CH RA is an English painter, draughtsman, printmaker, stage designer and photographer. He lives in Bridlington, East Riding of Yorkshire, and Kensington,