On May 24, be a real part of the celebration of Slavic writing, Bulgarian education and culture and write in black and white the history of those who donate knowledge. Come to floor 0 - central atrium between 10:00 and 19:00 and donate books that will go to the National Library "Petko R. Slaveykov" - Veliko Tarnovo. Anyone who donates a book can receive a free library card.