Long documents can be difficult to design, but long, data-heavy documents are particularly daunting. Companies that produce directories, glossaries, and catalogs often choose to design them manually, copying and pasting content into an InDesign layout. But there's a better way. With InDesign and XML, your data-heavy designs can be almost effortless. By setting up an InDesign document with the correct tags, you can import XML data so that it flows into the document already formatted.