Apple iPhone iOS 5.1 - Manual (Page 141)

View a collection Tap the name of the current collection at the top of the screen, then pick a
new one from the list that appears.
Manage collections Tap the name of the current collection you’re viewing, such as Books or
PDFs, to display the collections list.
You can’t edit or remove the built-in Books and PDFs collections.
Sort the bookshelf Tap the status bar to scroll to the top of the screen, then tap and select
a sort method from the choices at the bottom of the screen.
Delete an item from the bookshelf Tap Edit, then tap each book or PDF that you want to delete so that a
checkmark appears. Tap Delete. When you finish, tap Done.
If you delete a book you purchased, you can download it again from
Purchases in the iBookstore.
Search for a book Go to the bookshelf. Tap the status bar to scroll to the top of the screen,
then tap . Searching looks for the title and the author’s name.
141 Chapter 30 iBooks