* The Complete Book of Herbs (1974)
* Urter til sundhed og madlavning (1976)
* Vilde urter og hvordan man bruger dem (1977)
* Den naturlige vej til sundhed og skønhed (1978)
* The Complete Wildflower Book (1980)
* Den komplette bog om træer og buske (1981)
* The Complete Book of Garden Flowers (1983)
* The Complete Book of House Plants (1984)
* The Complete Book of Ferns (1985)
* Den komplette bog om kaktusser og sukkulenter (1986)
* The Complete Book of Bonsai (1987)
* The Complete Book of Orchids (1988)
* The Complete Book of Bromelias (1989)
* The Complete Book of Have 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)
* Den komplette bog om beskæring (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
* Træet 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 Bromelia Quarterly
* The Garden Pest and Disease Quarterly
* The Garden Design Quarterly
* The Water Gardening Quarterly
* The Rock Gardening Quarterly
* The Herb Gardening Quarterly
* Kvartalsbladet for grøntsagshave
* The Fruit Gardening Quarterly
* The Flower Gardening Quarterly
* The Tree Care Quarterly
* Beskæringskvartalet
* The Composting Quarterly
* The Organic Gardening Quarterly
* Permakultur Kvartalsskriftet
* The Sustainable Gardening Quarterly
Nyhedsbreve
* Urtebrevet
* Vildblomstbrevet
* Træ- og buskbrevet
* Haveblomstbrevet
* Husplantebrevet
* Bregnebrevet
* Kaktus- og Sukkulentbrevet
* Bonsaibrevet
* Orkidébrevet
* Bromeliabrevet
* Haveskade- og sygdomsbrevet
* Havedesignbrevet
* Vandhavebrevet
* The Rock Gardening Letter
* Urtehavebrevet
* Grøntsagshavebrevet
* Frugthavebrevet
* Blomsterhavebrevet
* Træplejebrevet
* Beskæringsbrevet
* Komposteringsbrevet
* Det Økologiske Havebrugsbrev
* Permakulturbrevet
* The Sustainable Gardening Letter