The Beauty & Me sample app that accompanies this book presents products to users in a traditional way. First of all, we let users sell all brands we are carrying. If you don’t know any brand, I will make up some, such as Origins, NUDE Skincare, etc. Under each brand, we have all products. When a user selects a product, the app displays the product detail. This chapter introduces the brand, or a more general name, product category.