Introduction. Where Things Are And What They Look LikeChapter 1 "I Vote For Euclid"Chapter 2 How Many Holes Does A Straw Have?Chapter 3 Giving The Same Name To Different ThingsChapter 4 A Fragment Of The SphinxChapter 5 "His Style Was Invincibility"Chapter 6 The Mysterious Power Of Trial And ErrorChapter 7 Artificial Intelligence As MountaineeringChapter 8 You Are Your Own Negative-First Cousin, And Other MapsChapter 9 Three Years Of Sundays