Demetria Clark is an internationally recognized specialist in herbalism and aromatherapy. She offers her knowledge in certified courses on the specially developed e-learning platform Heartofherbs.com . She also works as a doula, i.e. a companion for pregnancy, birth and the postpartum period. Advanced training on the subject of pregnancy and birth can be completed via the Internet forum " Birth Arts International " that she runs. Demetria Clark received her own training in aromatherapy at the "Pacific Institute of Aromatherapy" and from the renowned herbalist Jeanne Rose, a pioneer in this field.

She has already published the books "Herbal Healing for Children" (2011) and "Aromatherapy: Essential Oils for Healing" (2015).