PEN International is headquartered in London and composed of autonomous PEN Centres in over 100 countries around the world , each of which are open to qualified writers , journalists , translators , historians and others actively engaged in any branch of literature , regardless of nationality , race , color , or religion The various PEN affiliations offer many literary awards across a broad spectrum .
Each of these centers are open to qualified writers , journalists , translators , historians and others actively engaged in any branch of literature .