Apple has released iBooks Author 1.0.1 and iBooks 2.01.
iBooks Author 1.0.1 is an update of Apple’s free tool for creating interactive ebooks. The new version “provides an updated version of the End User License Agreement.” iBooks Author is a free download at the Mac App Store.
iBooks 2.0.1 for the iPhone and iPad addresses a problem where some iBooks textbooks fail to open. The update is available at the Apple App Store.