This document can be used as a slide show to introduce your human body systems class to the integumentary system, also know as skin. Topics outlined include the roles of skin, details about its its layers, and color (cause and distribution). There are also pages on hair nails, follicles, glands, acne, and several skin diseases. Be aware that some of the photographs of people with the skin conditions can be disturbing. Note that there are no teacher's notes for the slides, so you will want to go through them first to prepare your lecture notes.