After purchasing translations, if you need some guidelines for reviewing them, the following book is helpful (available on Kindle): “Brian Mossop—Revising and Editing for Translators (Translation Practices Explained)”
The author was a French-to-English translator, reviser, and trainer at the Canadian Government's Translation Bureau for forty years. The book received a recommendation from Tony Atkinson, President of the Japan Association of Translators.
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