Despite we bitch around STEAM, bugs in HL , HL2, or some stuff we'd rather want. We all do appreciate the hard work from Valve... Doing that by buying their games and such, as i can't see any other thing to motivate the team @ Valve.... perhaps sending off some girls off there to do their 'job' ?
Rofl, anyway, here is my collection so far, and awaiting the other book of HL2. For MOD authors and such.
The Raising the Bar book is very nice! A lot of pictures, a lot of comments and pretty interesting for everyone interested in its development.