How to Add a Hyperlinked Cross-Reference in iBooks Author
You may want to create a cross-reference to text or figures in your e-book. In iBooks Author, cross-references take the form of hyperlinks that make a text selection into a tappable item that can then open a web page in the iPad’s Safari browser, begin an e-mail message in its Mail app, or jump to another part of the current e-book.
You can add bookmarks to specific text locations, providing a destination for a cross-reference hyperlink. When you create an object that has a title, such a bookmark is automatically created.
To add a bookmark, follow these steps:
Insert the text cursor in a text box or shape on any document page, except a chapter or section opener or a figure caption.
Alternatively, select a word or phrase in a text box or shape.
Select a word or phrase so that you can more easily find the bookmark location later; the bookmarked text has a blue frame placed around it. (This frame doesn’t appear to the reader in the e-book on the iPad.)
The Hyperlink inspector’s Bookmark pane appears, listing the bookmark and its page number. If you selected a word or phrase when creating the bookmark, that text appears as the bookmark’s name; otherwise, the word Bookmark is used.
Double-click the bookmark’s name to make it editable, and then enter the name you want to use.
To create a cross-reference to a bookmark you created, follow these steps:
Go to a location in the book that you want e-book readers to be able to tap to get to that bookmarked location.
Select the text that the reader should tap.
The Hyperlink inspector’s Hyperlink pane opens.
Choose the destination bookmark from the Name pop-up menu.
After you add the hyperlink, the origin text (what the reader taps to jump to the destination bookmark) is highlighted with a blue rectangle (which isn’t visible in the e-book on the iPad) and styled as blue underlined text (which is retained in the iPad’s e-book so that readers know the text is a hyperlink).