The following table presents the differences between the behavior of books and articles in the Reader page:
| Books | Articles | Book topics | Article topics | |
|---|---|---|---|---|
| Table of contents | Yes | Yes | N/A | N/A |
| Add a bookmark | No | No | Yes | Yes |
| Add to a personal book | No | No | Yes | Yes |
| Appears in related links | Yes | Yes | No | No |