Apple has introduced a new version of its free iBooks app for iOS devices. It lets users read ebooks in over 40 languages.

The new iBooks also lets users experience an entirely new kind of ebook that’s “dynamic, engaging and truly interactive,” according to Apple. Ebooks created with Apple’s new iBooks Author offer fullscreen ebooks with interactive animations, diagrams, photos, videos, custom fonts, mathematical expressions and much more.

It also supports continuous scrolling, sharing of passages (but not, alas, entire books) on Facebook and Twitter, iCloud syncing support, and more. iBooks is a free app available at the Apple App Store.

Apple has also revved its iBooks Author tool, a free app that allows anyone to create and publish multi-touch books for the iPad. Available at the Mac App Store, the upgrade sprots new templates, custom font embedding, and portrait-only iBooks.