* The Complete Book of Herbs (1974)
* Urter for helse og matlaging (1976)
* Ville urter og hvordan du bruker dem (1977)
* Den naturlige veien til helse og skjønnhet (1978)
* The Complete Wildflower Book (1980)
* Den komplette boken om trær og busker (1981)
* The Complete Book of Garden Flowers (1983)
* The Complete Book of House Plants (1984)
* The Complete Book of Ferns (1985)
* The Complete Book of Cacti and Succulents (1986)
* The Complete Book of Bonsai (1987)
* The Complete Book of Orchids (1988)
* The Complete Book of Bromeliads (1989)
* The Complete Book of Garden Pests and Diseases (1990)
* The Complete Book of Garden Design (1991)
* The Complete Book of Water Gardening (1992)
* The Complete Book of Rock Gardening (1993)
* The Complete Book of Herb Gardening (1994)
* The Complete Book of Vegetable Gardening (1995)
* The Complete Book of Fruit Gardening (1996)
* The Complete Book of Flower Gardening (1997)
* The Complete Book of Tree Care (1998)
* The Complete Book of Pruning (1999)
* The Complete Book of Composting (2000)
* The Complete Book of Organic Gardening (2001)
* The Complete Book of Permaculture (2002)
* The Complete Book of Sustainable Gardening (2003)
* The Complete Book of Gardening (2004)
Magasiner
* The Herb Quarterly
* The Wildflower Quarterly
* Treet og busken kvartalsvis
* The Garden Flower Quarterly
* The House Plant Quarterly
* The Fern Quarterly
* The Cactus and Succulent Quarterly
* The Bonsai Quarterly
* The Orchid Quarterly
* The Bromeliad Quarterly
* The Garden Pest and Disease Quarterly
* The Garden Design Quarterly
* The Water Gardening Quarterly
* The Rock Gardening Quarterly
* The Herb Gardening Quarterly
* The Vegetable Gardening Quarterly
* The Fruit Gardening Quarterly
* The Flower Gardening Quarterly
* The Tree Care Quarterly
* Beskjæringskvartalet
* The Composting Quarterly
* The Organic Gardening Quarterly
* The Permaculture Quarterly
* The Sustainable Gardening Quarterly
Nyhetsbrev
* Urtebrevet
* Villblomstbrevet
* Treet og buskens bokstav
* Hageblomstbrevet
* Husplantebrevet
* Bregnebrevet
* Kaktus- og sukkulentbokstaven
* Bonsaibrevet
* Orkidebrevet
* Bromeliabrevet
* Hagepest- og sykdomsbrevet
* Hagedesignbrevet
* The Water Gardening Letter
* Steinhagebrevet
* Urtehagebrevet
* Grønnsakshagebrevet
* Frukthagebrevet
* Blomsterhagebrevet
* Trepleiebrevet
* Beskjæringsbrevet
* Komposteringsbrevet
* The Organic Gardening Letter
* Permakulturbrevet
* The Sustainable Gardening Letter