Pictures go further when they’re interactive. Callouts and pan-and-zoom features add even more to the experience.

Let readers browse Keynote presentations with custom animations — right inside their textbooks. iBooks Author includes intuitive controls for slide navigation and optional self-playing presentations.

Instead of seeing just a cross section of the brain, readers can manipulate a 3D image to see all the way around it. 

Instead of seeing just one image on the page, readers can swipe through an entire collection of interactive photos and captions with a finger. They can navigate the gallery using photo thumbnails or step through images one at a time.

Insert relevant asides and tangential topics into scrolling sidebars. So readers can go with you on a short (or long) detour, without ever leaving the page.

Video and audio bring any subject matter to life, anywhere on the page. Readers will experience text and images — instead of just reading and viewing them. 

A picture may be worth a thousand words, but sometimes it can use a few more. Pop-Overs let readers tap an image to reveal a window of additional information, images, or other data to give more context.

Let readers test their knowledge using a variety of question types: multiple choice, choose the correct image, label the image, or a mix of all three.

Create your own HTML widgets using your favorite text editor or third party app, then add them to your book alongside the text. Web-based, dynamically updated data keep examples current.