As you input your recipes, there is the option to assign them a category. If you have done this already, then you are ahead of the game. Enter the designer for your book and click on your Recipe Box. When your recipe box appears, you can see that there is the ability to select all of your recipes at once by clicking on the box next to Recipe. If you only want to add certain recipes, then you can select them individually. With your recipes selected, click on the Batch Actions button. Select the Add to Book option. A dialog box will appear with the first step being to select a layout for your recipes. A different layout can be chosen for each page later if you decide to change that. After the layout step, you'll select your placement. Choose the "In the appropriate "sections" creating section dividers if necessary" option. This will place your recipes based on their categories.