Peopleware by Tom DeMarco & Timothy Lister
This is one of the most influential books in our industry and should be required reading for all technical leaders. It makes an incredibly strong argument for hiring really smart people, giving them direction, and the space and freedom to run (Scott Guthrie comes to mind). In fact some people have called it the "Anti-Dilbert" manifesto. It starts off looking at environmental conditions for development teams and provides guidance on productivity problems in those oceans of cubes we now find ourselves in. And those evil intercom systems? They break flow - duh! It follows up with a roadmap for hiring, motivating, and growing super stars and super teams. It concludes with advice on how to begin influencing your organization to make changes in order to create more successful outcomes.