This document discusses various concepts related to wise purchasing and consumer rights. It covers topics like the principles of wise purchasing such as buying the right quality and quantity of food at the right price and time. It also discusses the importance of knowledge in areas like nutrition, food prices and food preparation methods. The document also touches on concepts like food labels, brands, advertising and common deceptive practices in the market. It emphasizes consumer rights such as the right to safety, choice and being well-informed. Finally, it provides tips for wise shopping such as making a purchase list and menu plan and checking prices at the cashier.