Half page binders are more common because they are: 1. Lighter weight and take up less shelf space. 2. Use the more common 4x6 card format and standard 8.5x11in paper cut in half to 5.5x8.5in. 3. Are great for smaller recipe collections. Full page binders are fantastic solutions for more accomplished cooks because they: 1. Support twice as many recipes and have a real feeling of quality when given as a gift. 2. Can easily fit full 8.5x11 sheets of paper, as well as large magazine clippings. 3. Can fit larger 5x7in recipe cards as well as 4x6 recipe cards. We also offer page protectors, dividers and accessories.