Laycock skrev eller redigerede 20 bøger, over 100 bogkapitler og 350 artikler i akademiske og populære tidsskrifter. Mange af disse publikationer var viet til miljø- og canadisk historie, herunder:
- *City and Suburb:The Political Fragmentation of Metropolitan Toronto, 1893–1924* (1970)
- *Concepts in Urban Planning* (1973)
- *Politics and Urban Growth:A Study of Metropolitan Toronto* (1974)
- *The Alien and the Aborigine:Three Centuries of Cultural Conflict in Canada* (1978)
- *Skov og miner:Udvikling og ødelæggelse på Labrador-halvøen, 1700–1970* (1980)
- *Legacy:The Historical Geography of Western Canada* (1981)
- *A Wilderness Called Home:A Personal and Historical Journey Across the Canadian North* (1992)
- *Britannia:The Life and Times of the British Columbia Forest Industry, 1871–1980* (1994)
- *Sacred Land:The Western Rockies, Banff-Jasper-Yoho National Parks* (1996)
- *CPR og vestlige landskaber* (1997)
- *The New Environmentalism:The Fighting Back* (1998)
- *Verden omkring Mount Robson* (2000)
- *Laksejagten:15.000 miles rundt i det vilde Stillehav* (2002)
- *The Rocky Mountain National Parks of Canada:A History* (2004)
- *Nature's Fury, Nature's Grace:The Fraser River Year* (2006)
- *The Last Salmon:A Journey Through Fish, Rivers, and Memory* (2010)
- *Watershed:The Role of Water in the Development of Canadian Society* (med Don Macpherson) (2012)