Another must-read cyberpunk masterpiece by William Gibson.

Amazon Description: 2005: Welcome to NoCal and SoCal, the uneasy sister-states of what used to be California. Here the millenium has come and gone, leaving in its wake only stunned survivors. In Los Angeles, Berry Rydell is a former armed-response rentacop now working for a bounty hunter. Chevette Washington is a bicycle messenger turned pickpocket who impulsively snatches a pair of innocent-looking sunglasses. But these are no ordinary shades. What you can see through these high-tech specs can make you rich--or get you killed. Now Berry and Chevette are on the run, zeroing in on the digitalized heart of DatAmerica, where pure information is the greatest high. And a mind can be a terrible thing to crash...