The old GW compediums that they used to do for Judge Dredd, 40k, Spae Hulk, and Dark Future were fantastic books.
Compiled lots of articles from WD in one place, and even added some new bits.
The binding, or lack there of, left something to be desired though. They had the intention of you punching it all an sticking it in a binder. My old copies of Advanced Heroquest and space Bulk both come with a colorful binder spine insert even.