Index Translationum

Index Translationum website:

"The Index Translationum is a list of books translated in the world, i.e. an international bibliography of translations. The data base contains cumulative bibliographical information on books translated and published in about one hundred of the UNESCO Member States since 1979 and totalling more than 1,500.000 entries in all disciplines : literature, social and human sciences, natural and exact sciences, art, history and so forth. It is planned to update the work every four months."

There are some interesting statistics available from the website on where books are translated, and languages involved.