There are a few different ways that you can go about creating a photobook in InDesign. One option is to use one of the many photobook templates that are available online. Another option is to create your own custom layout from scratch.
If you decide to use a template, you can find a variety of options by doing a search online. Once you have downloaded a template, you will need to open it up in InDesign and insert your own photos into the placeholder frames. You can then customize the text and other design elements to your liking.
If you opt to create your own layout, you can start by creating a blank document in InDesign. Once you have your blank document open, you can begin adding photos and other design elements to build out your photobook. As you add photos, you will want to create text frames to go along with them so that you can add captions or other text. You can also add embellishments, background colors, and other design elements to make your photobook unique.
