I'm in Portland, OR today. Powell's Bookstore is huge, wonderful and renowned. However, I only just discovered their smaller, yet sizable "technical books" annex around the corner. HOLY MOLY. This is the mother lode for all the risk-takers, the doers, the makers of things. The layout (above) and some of the shelf category labels should give you a good idea of what you'll find: artificial intelligence, vintage & handtools, probability theory, solid state electronics, microcontrollers, CNC, Tesla, fuzzy logic & neural nets, dams, bridges, boatbuilding, artificial life & genetic algorithms, user interface design, and more. There's plenty of cozy cafe chairs, and a little collection of vintage computers in the back, including a NeXT Cube and CBM Model 8032. They even sell stethoscopes in the med ref section! Due to rain and hail, I'm cooped up inside enjoying free wi-fi. No one cares I have yet to buy anything -- although I've amassed a pretty nice stack. If you're ever in Portland, this place is a guaranteed wallet-buster. Photos and some fun finds* after the jump. *You don't have to be in Portland to browse the collection. For a random look, try Powell's Shuffle feature. Here's where I'm camped out, followed by some of what I caught my eye... - Build Your Own Underwater Robot & Other Wet Projects - Encyclopedia of Vibration - American Machinist's Tools: An Illustrated Directory of Patents - Chemistry of Powder & Explosives - Building a Shed - Doolin's Trouble Shooters Bible - The Golden Age of Handbuilt Bicycles - Decoding the Heavens Drawers of Oregonian Topographic Maps! If there are any vast, must-see tech bookshops in your city, let us know.