Japanese 597C/660 Problems and Methods of Translation

Translation Status

To find something that hasn't been translated, you need to check what has been translated, and work by elimination.

Japan Foundation's Japanese Literature in Translation
This is the most current source of information about translations, particularly for contemporary materials.
Michael Watson's Premodern Japanese Texts and Translations
Note: hasn't been updated since 2013. If you are interested in classical Japanese literature, there is no better place to find information - both online access to the Japanese texts and information about translations.