A few text windows employ additional Previous and Next arrows for scrolling, and the CAD modeler has quick zoom and rotate controls. Help is for navigating the current screen, or jumping topics. Clicking words colored red pops up an otherwise inaccessible glossary entry. The readability of text is very good. Illustrations and videos are small and clear enough, but some decorative arts photos suffer from excessive pixilation.
None approaches print quality.
Pleasant synthesized music accompanies Menu changes, but the computer is otherwise blissfully silent. Interaction with the content is limited chiefly to the Walking Tours and CAD topics, or to searching the Library, but bookmarks, check boxes, and note-taking are absent. One complaint is a dearth of shortcuts within topics, particularly the inability to scroll faster than seriatim. Although topic headings are always visible, there's no way to know how many images lie within, or where in that loop you are. There's excellent material buried in those books, but you have to find it yourself using keyword entry.