Douglas R HofstadterDouglas Hofstadter's book is concerned directly with the nature of “maps” or links between formal systems. However, according to Hofstadter, the formal system that underlies all mental activity...

Douglas R Hofstadter and Daniel C Dennett Brilliant, shattering, mind-jolting, The Mind's I is a searching, probing cosmic journey of the mind that goes deeply into the problem of self and self-consciousness...