- A Taste of Heritage - Crow Indian Recipes & Herbal Medicines (Univ. of Nebraska Press) 2006 (PDF)
- Artemisia (Taylor-Francis) 2002 (PDF)
- Capsicum - The genus Capsicum (CRC) 2003 (PDF)
- Chinese & Related North American Herbs: Phytopharmacology & Therapeutic Values (CRC Press) 2002
- Chinese Herbal Medicine: Modern Applications of Traditional Formulas (CRC Press) 2005 (PDF)
- Cinnamon & Cassia: The Genus Cinnamomum (CRC) 2003 (PDF)
- Citrus: The Genus Citrus (CRC) 2002 (PDF)
- Complete Idiot's Guide to Herbal Remedies (Penguin Group) 1999 (PDF)
- Consumer's Guide to Herbal Medicines (Self Healing) 2001 (PDF)
- Dr. Andrew Weil's Consumer Guide to Herbal Medicine with Compliments of Self Healing (PDF)
- Duke's Handbook of Medicinal Plants of the Bible (CRC Press) 2008 (PDF)
- Echinacea: The Genus Echinacea (CRC Press) 2004 (PDF)
- Ethylene Action in Plants (Springer) 2006 (PDF)
- Eyewitness Companions Herbal Remedies (DK Publishing) 2007 (PDF)
- Garlic: Natures Amazing Nutritional & Medicinal Wonder Food (Woodland Publishing) 1996 (PDF)
- Ginger: The Genus Zingiber (CRC Press) 2005 (PDF)
- Handbook of Medicinal Herbs 2nd Ed. (CRC Press) 2002 (PDF)
- Handbook of Medicinal Spices (CRC Press) 2003 (PDF)
- Handbook of Poisonous and Injurious Plants (Springer) 2007 (PDF)
- Healing Mushrooms (Square One Publishers) 2007 (PDF)
- Herbal & Traditional Medicine: Molecular Aspects of Health (Marcel Dekker) 2004 (PDF)
- Herbal Manual: The Medicinal, Toilet, Culinary & other Uses of 130 of the Most Commonly Used Herbs (PDF)
- Herbal Medicines 2nd Ed. (Pharmaceutical Press) 2005 (PDF)
- Herbal Medicines in Pregnancy & Lactation: An Evidence-Based Approach (Taylor-Francis) 2006 (PDF)
- Herbal Products Toxicology & Clinical Pharmacology 2nd Ed. (Humana Press) 2007 (PDF)
- Herbs and Natural Supplements: An Evidence-basec Guide 2nd Ed. (Elsevier) 2007 (PDF)
- Indian Medicinal Plants: An Illustrated Dictionary (Springer) 2007 (PDF)
- Kava - From Ethnology to Pharmacology (CRC Press) 2004 (PDF)
- Lavender - The Genus Lavandula (Taylor-Francis) 2002 (PDF)
- Medicinal Natural Products: A Biosynthetic Approach 2nd Ed. (John Wiley & Sons) 2002 (PDF)