A.W. Priest is a naturopath who has pursued a special interest in irisdiagnosis for the past 40 years. He was some-time Vice-Dean of the British College of Naturopathy and more recently Director of Education to the National Institute of Medical Herbalists. He was in personal contact with Theodor Kriege for a number of years and published the English translation of his basic textbook in 1968. Herbal Medication- A Clinical and Dispensary Handbook written jointly by A.W and L.R. Priest was published in 1983 and is used as the herbal reference in Part 2 of Disease Signs of the Iris.