If you decide you no longer need a book on your bookshelf, you can remove it. Bookshelf entries are removed in Workspace or Projects.
To remove items from your bookshelf in Workspace or Projects:
From Workspace or Projects, click the checkbox next to the bookshelf entry you want to remove.
Click Delete Selected. The book is removed from your bookshelf.
Tip
From Workspace or Projects, you can filter the display to show only bookshelf entries. For more information, click Filtering Files in Workspace or Projects.
More
Adding Items to Your Bookshelf
Opening Books on Your Bookshelf