This is a science study course from Educational Insights product number 7121, for use in class rooms, groups, and homes. It consists of a set of 52 reference cards, and a box. Each card has text, with the occational black and white illustration. The set has 2 cards that are not counted in the sets 50 numbered cards {1 title card, and 1 Table of Contents card}. The box says it is "Individualized". The cards look at various foods, vitamins, Minerals, Meats, Vegetarianism, and even things like salmonella and tapeworms.