编辑点评：下载与阅读图书工具。新增iBooks教科书，它采用iBooks Author制作，该程序现已在Mac App Store中提供免费下载。

iBooks is an amazing way to download and read books. iBooks includes the iBookstore, where you can download the latest*bestselling*books or your favorite classics – day or night. Browse your library on a beautiful bookshelf, tap a book to open it, flip through pages with a swipe or a tap, and bookmark or add notes to your favorite passages.

Features:

*Download many of your favorite books from the included iBookstore
**In addition to standard text, the iBookstore also offers books that are fully illustrated, and enhanced with audio, video, and animation
*Experience gorgeous fullscreen Multi-Touch textbooks designed for iPad. These*textbooks are filled with interactive*features, diagrams, photos, videos, and more
*Read a free sample of any book on the iBookstore before making it a part of your collection
*Reorder your books on your bookshelf or browse them in a list sorted by title, author, or category
*Organize your books and PDFs into personal Collections. Swipe left or right to jump between Collections
*Easily adjust your screen brightness to find the perfect lighting for any environment
*Change the font size and pick from six included type faces to make your books more comfortable to read
*Find a word, character, or phrase anywhere in your book with the built-in search feature
*Keep your bookmarks, notes, and your current page wirelessly in sync between iPhone, iPad, and iPod touch with the automatic
bookmark syncing feature
*Quickly find a specific page using the page navigator at the bottom of every page
*Read your books on white or sepia colored pages
*Switch to full screen to remove all distractions, or read in white-on-black with the nighttime mode
*Choose left or fully justified text layout from Settings
*Highlight your favorite passages and add notes with the built-in bookmarking features
*Add books in the industry-standard ePub electronic book format to iTunes and sync them to iPhone, iPad, or iPod touch
*Add PDF documents to iBooks from Mail, or add them to iTunes and sync them to iPhone, iPad, or iPod touch
*Print PDF documents and notes you've written in iBooks using AirPrint
*Use iBooks with the amazing accessibility features in iPhone, iPad, and iPod touch – such as speaking the words on a given page

Requirements:

*iPhone, iPad, and iPod touch must have iOS 4.2 or later
*An Apple ID is required to download from the iBookstore
*Automatic bookmark syncing requires an active Wi-Fi or cellular data connection and an Apple ID
*iBooks opens books made with iBooks Author, ePub books, or PDF documents
*To add books from outside the iBookstore, they must be DRM-free and synced using iTunes 9.2 or later. To sync books made with iBooks Author, they must be synced with iTunes 10.5.3 or later.
**iBooks textbooks can only be viewed on iPad and are currently available to customers in the United States
*Some PDF documents may not be compatible with iBooks