Gamescape sells go sets and books at three locations:

in San Francisco

333 Divisadero St.
San Francisco, CA 94117
(415) 621-4263

in Palo Alto

465 S. California Ave.
Palo Alto, CA 94306
(650) 322-4263

in San Rafael

1225 4th St.
San Rafael, CA 94901
(415) 457-8698