While practicing as a medicinal herbalist for 40 years, Marguerite Dunne earned a double master's degree in education, a certification in herbology, and candidacy as a Doctor of Naturopathy. As an adjunct instructor of Biology for twelve years in herbs and nutrition, she gave historic herb lectures, wrote articles, made media appearances, owned a health food store, worked as the regional manager for three major supplement brands, and had her own radio show called The Urban Herbalist. She trained doctors, nurses, nurse practitioners, social workers, pharmacists, health food industry store teams, and herbal apprentices. She is a member of the American Herbalists Guild, the American Botanical Council, and the National Health Federation. Marguerite is also profiled as the featured herbalist in the recently published book, "The New Healers" by Dr. Barbara Stevens Barnum.