them in action 3D Images Readers can manipulate 3D objects with a touch -- so instead of seeing a cross section of a brain, they can see all sections. iBooks Author gives book creators the option to adjust the background, allow readers to rotate the object freely, or constrain its movement to horizontal or vertical rotation. Interactive Images Pictures tell a bigger story when they're interactive. Callouts and pan-and-zoom features add even more to the experience. Interactive Galleries Instead of seeing just one image on the page, readers can swipe through an entire collection of interactive photos and captions with their fingertips. They can navigate the gallery using photo thumbnails or step through images one at a time. Study partner. Now that students can truly interact with a textbook, they need a new kind of study aid: one that helps them take notes and review content as they read. Highlighting and Note-taking Use a finger as a highlighter when reading any textbook in iBooks. Just swipe over any text or math expression and it's highlighted. Tap a highlighted section and a palette appears. Change colors, switch to underlining, or add a note instantly. Then switch to the Notes view to see all your notes and highlights organized in one place, making it a cinch to search or go back to the highlighted sections of the book. Sharing When it comes to studying, two minds are better than one. So when you come across a description of magnetostatics you can't figure