He is author of a number of introductory Philosophy books including the bestselling Philosophy: The Basics (4th ed.), Philosophy: The Classics (3rd ed.) and Thinking from A to Z (3rd ed.), Philosophy: The Essential Study Guide, and The Art Question; he also edited Philosophy: Basic Readings, second edition and is co-author of Reading Political Philosophy: Machiavelli to Mill. He has written extensively about photography, particularly about Bill Brandt, and wrote a biography of the modernist architect Ernö Goldfinger.[2] He regularly teaches courses on philosophy and art at Tate Modern and writes for the photographic magazine Portfolio. [wikipedia]