The focus of this year's event will be on books as a space of freedom.
This year marks two important anniversaries - the 400th anniversary of the birth of French playwright Molière, who found his space of freedom in farce and comedy, using them as a vehicle for a critique of the society of his time, and the 100th anniversary of he birth of Croatian poet Vesna Parun.
The organisers expect over a thousand programmes by libraries, bookshops, publishers, educational institutions, museums, local government authorities and other institutions and organisations. Admission to many of the events will be free.