Dr. Kwesi Ampong-Nyarko is a research scientist at Alberta Agriculture and Rural Development in Canada. He earned his PhD in agricultural botany from the University of Reading, England. Dr. Ampong-Nyarko spent years 2004–2010 in developing the technology for growing Rhodiola rosea and made great strides in popularizing and laying the foundation for its cultivation and commercialization in Alberta. He has a multidisciplinary background with demonstrated expertise in crop production, weed science, and international agriculture development. His current research focus is on crop diversification in the field and greenhouse crops. Dr. Alain Cuerrier, researcher at the Montreal Botanical Garden and writer, earned his PhD in plant systematics (University of Montreal with one year at Harvard University) before switching to ethnobotany in 2001. He participated in the creation of the First Nations Garden in Montreal as well as in Laquenexy, France. Since then, he has started ethnobotanical and ethnoecological projects with the Inuit, Innu, Naskapi, and Cree people. He is the president of the International Society of Ethnobiology. Dr. Cuerrier has published several books on plant uses by First Nations and Inuit of Canada.