Canadiana
Colombo’s Book of Canada (1978, 1998)
Toronto’s Fantastic Street Names (1982)
Colombo’s 101 Canadian Places (1983)
Colombo’s Canadiana Quiz Book (1983)
Canadian Literary Landmarks (1983)
1001 Questions about Canada (1986)
999 Questions about Canada (1989)
Writer’s Map of Toronto (1991)
Writer’s Map of Ontario (1992)
QuasiBook Edition of the Writer’s Map of Canada (1995)
Quotable Canada (1998)
Incredible Canadiana (2000)
1000 Questions about Canada (2001)
Footloose: A Commentary on the Books of Gordon Sinclair (2008)