http://www.apple.com/itunes/download/
http://www.appleinsider.com/articles/12 ... ncing.html
iTunes 10.5.3 was released by Apple on Thursday, bringing support for the new iBooks 2 application for iOS and allowing users to sync their textbook purchases.
The new version of iTunes is available for download direct from Apple. It is a 102.15MB installer for Mac OS X, 66.11MB for Windows 32-bit, and 67.98MB for Windows 64-bit.
"iTunes 10.5.3 allows you to sync interactive textbooks to your iPad," Apple's description reads. "These Multi-Touch textbooks are available for purchase from the iTunes Store on your Mac or from the iBookstore included with iBooks 2 on your iPad."
The release of iTunes 10.5.3 comes as Apple on Thursday launched the new iBooks 2 for iPad. The major focus of iBooks 2 are new digital titles for education that Apple hopes will reinvent the textbook.