Charts from Inner Light Resources are produced with the original Rainbow" Color Coding Diagram. The Sample Set of Small Charts is a wonderful addition and offers a variety of Inner Lights spectacular choices, including the Foot and Hand Reflexology Charts, which picture an easy-to-follow, color-coded diagram of the parts of the feet and hands which stimulate different organs. The Iridology/Eye Reflexology Chart shows how to diagnose illness by referencing a color-coded chart of the iris. Others are the Rainbow of Chakras, Crystals & Gems Charts 1 and 2 and the Aroma Remedies Charts 1 and 2.