The Mathematical Theory of Communication.

First edition of the "the magna carta of the information age" (Scientific American), Shannon's work provided "a mathematical guide for the system's engineers [at Bell Labs], a blueprint for how to move data around with optimal efficiency" (Gertner p.128). Boldly signed by Claude E. Shannon on the front free endpaper. Near fine in a very good dust jacket. Exceptionally rare and desirable signed, a cornerstone of twentieth century science.