Further reading

Books in English:

Pierre Janton – Esperanto: Language, Literature, and Community

Frank Nuessel – The Esperanto Language

David Richardson – Esperanto: Learning and Using the International Language

Arika Okrent – In the Land of Invented Languages

Gledhill Christopher (1998), The Grammar of Esperanto – A corpus-based description, Muenchen: Lincom Europa

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Web-sites:

http://lernu.net – a free website for getting to know and learning Esperanto

http://en.wikipedia.org/wiki/Esperanto_grammar - an overview of the Esperanto grammar