Practical English Usage by Michael Swan
A world bestseller and a vital reference tool that helps teachers and higher-level learners with common language problems in English
PenReader и Paragon Graphometric Tool
Paragon Software develops bilingual and monolingual dictionaries, based on Slovoed technology for 35+ world languages. The languages include Chinese, Japanese, etc.
The Open Dictionary API Alliance (ODAA)
Open community of dictionary publishers aiming to create new possibilities for millions of people using electronic dictionaries on their mobile devices.
Insight Guides Phrasebook for Mobile
Insight Guides Phrasebook paper editions now come with mobile apps offering the digital content to provide more convenience and flexibility to mobile travellers.