The King Abdulaziz Public Library in Riyadh is launching next Thursday, April 21, an exhibition of rare Holy Qurans in the presence of the General Supervisor of the Library, His Excellency Mr. Faisal bin Abdulrahman bin Muammar, and a number of interested people and researchers. It includes the display of rare collections of Holy Qurans, on the occasion of the library's celebration of World Heritage Day, which falls on the eighteenth of April of each year.