This is a great source for any translator or interpreter. Here you'll find lots of terms on any subject, carefully categorized. The sections go from very general to quite specific or technical. Even if you don't find exactly what you're looking for, there probably is a section that will serve as starting point for your search. Also this is a great tool to enrich your vocabulary.
It takes some getting used to, but this is a truly helpful book. I just wish you didn't have to buy it second hand. Every writer should have a copy, and it makes a great present for an aspiring author. It's hard to describe how useful this book is, in a way it's a reverse dictionary with a twist. You'll find Action words in there, descriptions, dates... you name it. Grab one. You won't regret it.