Kianna Smith is a certified IIPA instructor of Iridology. She has written an authoritative textbook on iridology: Iridology, A Handbook. This is widely used in the curriculum of colleges of naturopathy. It is considered an indispensable reference for iridologists across the country and around the world. For more than a decade, Kianna Smith served as a director for the International Iridology Practitioners Association (IIPA) and created educational programs, managed the publication of a newsletter and research journal and established guidelines for professional certification.