Difusión specializes in Spanish language learning books built around task based, real world use, with a clear priority on spoken fluency over heavy grammar drilling. Its course materials, including contributions to exam preparation resources like Les Clés du Nouveau DELF, suit instructors running communicative or immersion style classrooms rather than traditional grammar first courses. Piefke Trading is an authorized distributor for ASEAN (Malaysia, Singapore, Indonesia, the Philippines, Myanmar, Vietnam, Cambodia, and Thailand), the GCC (Dubai, United Arab Emirates), Kazakhstan, Hong Kong, Taiwan, South Korea, India, Pakistan, the EU, the UK, the US, the EAC (Kenya), Namibia, Australia, New Zealand, and Israel.