Teaming with Microbes: The Organic Gardener's Guide to the Soil Food Web. Revised Edition Publisher: Timber Press; Revised edition
Hellebores: A Comprehensive Guide: Written by C.Colston Burrell, 2006 Edition, Publisher: Timber Press [Hardcover]
Blueberries, Cranberries, and Other Vacciniums (Royal Horticultural Society/Timber Press Plant Collectors Guides Series)
British and Irish Wild Flowers and Plants: A Pocket Guide (WILDGuides of Britain & Europe, 48)
Forage The Pocket Guide Summer Edibles Edition Vol 3: “Identify, Harvest, and Enjoy Nature’s Summer Plants” (Foraging Chronicles)
A Handbook of Native American Herbs: The Pocket Guide to 125 Medicinal Plants and Their Uses (Healing Arts)