Roger Penrose Collected Works Vol 4 Author:Roger Penrose Professor Sir Roger Penrose's work, spanning 50 years of science and including his previously unpublished theses, have been collected and arranged chronologically over six volumes, each with an introduction from the author. This period of Sir Roger's career depicted in Volume 4 sees him primarily as an exponent of twistor theory, with many contr... more »ibutions to the Twistor Newsletter and published lectures, but also papers showing a growing interest in the physics of consciousness and artificial intelligence.« less