Navigational Aids. To assist the reader in readily navigating your ETD document, we recommend that you build sufficient internal navigational aids into your work. This is especially desirable if your ETD will be submitted as a single long pdf document. This can be done by adding internal links to the first page of each chapter and to other major parts listed in the Table of Contents, perhaps to each figure and table from the List of Figures/Tables, etc. Use of Adobe Acrobat's "Bookmarks" feature is a particularly easy way to include navigational links. Acrobat can automatically generate Bookmarks, which will appear in a window on the left side of the screen, from the Table of Contents generated from several modern word processors, including Microsoft Word. The creator of a pdf document can create additional bookmarks in an existing pdf document to another pdf document or to a Web page.