LiberOne is a complete and professional application to manage and maintain libraries and bookshops. It is highly recommended, above all, for those who have uncountable numbers of books.
From the LiberOne maintenance section you can administer everything about each book: the data, the location in the library, the loan history, etc. You can generate advanced searches or lists using distinct criteria and filters.
On the other hand, LiberOne also comes equipped with other useful tools, like those to generate backups, Dr Liber (a tracer that finds and corrects errors and incompatibilities), a complete agenda, a help section, classification help, etc.