The database of Libro

Before giving some examples of features of Libro, here are some data about the software itself.
“Libro” is written in Python and runs on a SQLite database.
The database of Libro works through the integration of eight different tables.
The general scheme of the database is the following:

The database of Libro 1.0

The structure of this database has been designed ‘thinking ahead’, preparing it for the features I would like to implement in the future.