When you choose a subject using the Browse panel, the list of matching books is displayed in the Browsing Results list.
The subject you have chosen to browse (along with the number of results) appears at the top of the list.
To browse the complete library, click the X next to the subject (or click Clear All).
All the books in the current library are displayed in the Browsing Results list. Move through the list in the usual way.
More on browsing: