""The Aura of Healthy Persons"" is a book written by Walter J. Kilner that explores the concept of the human aura and its relationship to physical health. Kilner was a British physician who believed that the aura, an invisible energy field that surrounds the body, could be seen and studied using a special technique he developed called the ""Kilner screen."" In this book, Kilner presents his findings on the auras of healthy individuals, which he believed...