Adding assets to your guides, is why we are all here! It's the actual content of your guides, and it couldn't be simpler!
It's that simple!
Note: For information on managing your assets, visit the Boxes, Assets, & Content Items
There are many types of assets you can add: RichText/Html, Databases, Links, Media/Widgets. Books from the catalog, Document/files, RSS Feeds, Guide Lists, Polls, Google Search Boxes, LibAnswers Widgets, Remote Scripts, and Images.