Brochures will tell your (potential) customers everything they need to know about a certain product. Why not let them know in their native language and expand your customer base significantly? Speciality: business, corporate, technology, commerce, tourism, apparel, education, and more.
With both posters and flyers it's all about size. Posters naturally draw a lot of attention to themselves due to their big advertising space. Flyers on the other hand get amazingly much information across on remarkably little advertisind space. Both ways of communication are even more efficient when translating them into your readers' mother tongue - give it a try!
Imagine presenting your audience with a concept written in their native language. Not only will they be pleasantly surprised and consequently more open to new ideas - their subconscious will also memorize the content more easily. As you can see, there is nothing to lose but everything to gain...