OUCH! Spanish... I thought of it, but it will depend on how this one will work/be sold. It's a question of convincing the publisher. And to convince a publisher you must show him that he'll earn money. Not obvious when this publisher has its distribution mainly based in France and no online purchase yet. So I'm working on the online purchase on their site and after I'll see ;-)
Guillaume
PS: by the way, we just finished a book about Shaolin. Nothing to do with balisong, but it is the first book in both French & English published by Européenne de Magazines. We're moving towards multilingual books.