Every year on 23rd April millions of people around the world celebrate books and reading on World Book Day. The date is important because two great writers died on this day in 1616; William Shakespeare, the English playwright and poet, and Miguel de Cervantes, the Spanish writer.
Each year UNESCO (United Nations Educational, Scientific and Cultural Organization) chooses one city to be the World Book Capital City. This year, the city is Incheon, in the Korean Republic.
So what happens on this special day?
Schools, bookshops and libraries hold all kinds of fun events. People wear costumes of their favourite book characters, authors sign copies of their books, storytellers read to children and adults, ... and much more.
Have a look at the website to see some of the events for this year.