A-Z Guide to Drug-Herb-Vitamin Interactions, 2nd ed.
Botanical Safety Handbook, 2nd ed.
Clinical Guide to Blending Liquid Herbs
Clinical Research in Complementary Therapies 2nd ed
Essential Guide to Herbal Safety
Fundamentals of Pharmacognosy & Phytotherapy
Growing & Using Herbs Successfully
Hands on Healing Remedies
Herb of the Year 2013: Elderberry
Herb of the Year 2017: Cilantro/Coriander
Herb of the Year 2018: Hops