Absolutely! The database is completely generated by volunteer users. If you find something that's missing, you can add it to the database. To get started, do 2 things first:
1) Double check to make sure that what you're looking for isn't in the DB. We base titles on indices not on covers, so be sure to check the book's find print. Also, if trades aren't numbered, they each one has it's own title. And try looking up titles using just some key words in case you don't have the full title completely correct.
2) Reach the Change Request Guidelines, located
here, to see how to begin the the process of adding titles or books. Make entries as complete as possible. Providing some kind of online reference will help the Approvers to quickly approve your submissions.
If you have any questions, feel free to send a private message to me or any of the Approvers. You can also post questions in the "Change Request Discussion" or "Comics Library General Discussion" sections of the forums.
"To escape criticism: do nothing, say nothing, be nothing." ~Elbert Hubbard