ZIFF DAVIS SMART BUSINESS (formerly ZIFF DAVIS SMART BUSINESS FOR THE NEW ECONOMY) (ceased publication)
Briar Cliff University Library, May 2001-June 2002
Sioux City Community High Schools: West, May 2000-current

ZIFF DAVIS SMART BUSINESS FOR THE NEW ECONOMY (formerly PC COMPUTING; now ZIFF DAVIS SMART BUSINESS)
Briar Cliff University Library, May 2000-April 2001

ZOOBOOKS
Sioux City Public Library: Main, May 1986-January 1992 (keep all issues); Schroeder-Morningside Branch, June 1999-July 2003 (keep all issues)

ZYGON
Briar Cliff University Library, 1966-current