People walk past a macrame crossword hanging on a fence at the National Library of Spain on World Book Day, in Madrid, April 23, 2015. World Book Day is annually celebrated on April 23, to pay tribute to books and authors, and to encourage reading. The date is the anniversary of the deaths of Spanish author Miguel de Cervantes, British playwright and poet William Shakespeare and writer Inca Garcilaso de la Vega, who was born in Peru. REUTERS/Andrea Comas