You can use iBooks on iPad, iPhone, or iPod touch with iOS 4 or later. Syncing books made with iBooks Author requires iTunes 10.5.3 or later. BK iBooks are available in 51 countries. Downloading from the iBooks Store or using iCloud features require an Apple ID and Internet access. All iBooks created by BK require iOS 5.1 or later.
Are book samples from the iBooks Store downloaded to my iPad, iPhone, or iPod touch?
Yes, when you tap Get Sample for a book in the iBooks Store, iBooks will download an excerpt from the book to your bookshelf. You can read this sample and either purchase or download the complete book from the last page of the sample. Once you acquire the full book, the sample will be replaced in your bookshelf with the complete book.
How large are typical BK books from the iBooks Store?
The typical book is about 2 MB. Books that contain enhanced features such as audio or video will vary in size depending on the content. Enhanced books may take longer to download or require a Wi-Fi connection to purchase. The iBooks Store offers textbooks that may be as large as 1-2 GB in file size and require a Wi-Fi connection if downloading from an iOS device. Download times for textbooks will vary depending on your internet connection.
Can I purchase a book from my computer?
In certain countries you can browse and purchase Books from the iTunes Store on your computer.
Can I copy my books on to other computers or devices?
With Automatic Downloads enabled, you can automatically download new purchases to your other computers or devices.
Can I back up the books I purchased?
Yes, any books you’ve downloaded from the iBooks Store will be automatically added to your iTunes library the next time you sync your device with your computer. To do this, your computer must be authorized with the same account that was used to download the books from the iBooks Store.
Can I download my previously purchased book again at no additional cost?
Yes, you may download past purchases from the iBooks Store at no additional cost. To download a book again, tap Store, then tap Purchased. Find the book you want to download again and tap the download button. You must be logged in to the iBooks Store on your iOS device or iTunes Store on your computer using the Apple ID you originally used to purchase a book in order to download it again. Previous purchases may be unavailable if they are no longer on the iBooks Store. Downloading previous purchases is not compatible with iPhone 4 (CDMA Model).
Is there a limit to the number of books I can have?
The number of books you can have in iBooks will vary depending on the amount of space available on your device. iBooks does not limit the number of books allowed on your bookshelf.