We developed this book for nurses who train patients in peritoneal dialysis. Because nurses have not been professionally trained as teachers, they inadvertently often begin teaching without considering what they specifically want their patients to learn or how they are actually going to teach them. Nurses tend to teach as they were taught, following the model of “seeing one, doing one, teaching one.” We propose an alternative model of patient training that follows principles of learning and focuses on the nurse’s role as a teacher.