Celebrated British artist David Hockney dies at 88

We look back on the life of David Hockney - one of the world's most influential modern artists and one of the best-known British contributors to Pop Art. Unlike artists such as Andy Warhol or Roy Lichtenstein, David Hockney's art often focused more on personal experiences, portraits, landscapes and intimate scenes.Also: SpaceX is making its stock market debu…