The Oxford Companion to the Mind Gregory, R 2004
A field of 216 contributors filled this tome with savory items from Abacus to Zeno of Elea. In between there are 819 pages of 1001 entries, all in some way expanding our understanding of psychology, philosophy and the physiology of the brain. Like all excellent references, you could easily, happily get lost perusing, but it also happens to be excellently well indexed. Been wondering about the hippocampus or Thomas Hobbes, introversion or tautologies? Wonder no more, or at least wonder with more acumen.