"ONE OF THE MOST SIGNIFICANT MASTER'S THESES OF THE 20TH CENTURY" (BRITANNICA)
SHANNON, Claude. A Symbolic Analysis of Relay and Switching Circuits. New York, 1938.
First edition of Shannon's master's thesis demonstrating how Boolean algebra could simplify the arrangement of relays underlying automatic telephone exchanges—and suggesting, for the first time, the concept of using 0 and 1 as true/false values to allow arithmetic by relay circuits—a crucial work with applications for all digital circuits including those in computer technology, and winner of the Alfred Noble American Institute of American Engineers Award. $16,000.