Aldiko version 4 is a complete rewrite of the application. To ensure that all your books are correctly recognized, you must migrate them to this new version, as prompted during the installation procedure.
If you have skipped this step, you can always go back and migrate your books by following the steps below:
- In Aldiko 4, go to the Settings section.
- Tap on Migrating your books.
- Follow the indicated steps.
- Once the procedure is completed, you will find all your publications in the Bookshelf section.