The Eldar. Love them or hate them, most WH40k gamers feel rather passionately about the slender, elegant and pointy-eared aliens. Of all the 40k races, the Eldar are the most fluid, the most specialised and most exciting to play. But what is it about the Eldar that makes them this way? Surely it is not just the models and snazzy rules. Well, this is what attracts people to them (or makes them hate them), but it is the background that is one of the richest and most innovative of all. This Encyclopaedia aims to take you through alphabetically the most important and interesting factors motivating the Eldar from all of the available material published by Games Workshop since they first bounded on the scene (see Appendix).