PEN International is the world’s leading organization for writers, defending freedom of expression and promoting literature across the globe. Founded in 1921, PEN International works to protect and promote literature and freedom of expression through its network of 145 Centres in more than 100 countries. It works on behalf of writers who are persecuted or imprisoned for their work, campaigns against censorship, and defends the right to freedom of expression. It also promotes international literary exchange and collaboration between writers.