Esperanto culture
Esperanto is often used to read thousands of books from an international culture. The library of the British Esperanto Association (one of several Esperanto libraries) has 30,000 books in Esperanto (originals and translations) and there are also over 100 regularly distributed Esperanto magazines. Many Esperanto speakers use the language for free travel throughout the world using the Pasporta Servo. Others like the idea of having penpals in about any country of the world using the Koresponda Servo.
Every year, hundreds of new titles are published in Esperanto along with music and even films. Some editions exceed 100,000 copies. Also, a great number of Esperanto newspapers and magazines and radio stations broadcast in Esperanto. In 2001, the Universala Esperanto-Asocio (The Universal Esperanto Association) had members in 119 countries of the world, and the annual Universala Kongreso (Universal Congress) usually gathers 2,000-6,000 Esperanto speakers.
On December 15 (Zamenhof's birthday), Esperanto speakers around the world celebrate Zamenhof Day.
The Esperanto anthem is La Espero. There is also an Esperanto flag.