Metalinguistics Research & Development Institute is dedicated to linguistics education content developer.
Out mission is to bring the best experience for your English language development.
We have patented vocabulary structure and relational data matrix which is reflected in our products, the Vitruvius Advance Vocabulary series.
We have many more English language development contents to be published in the following years.
The Vitruvian Advance Vocabulary is the first generation of vocabulary products.
We truly wish all English language learners to expand and extend the powering experience.
Thank you for your interest and contact us any time by email on the contact page.
International resellers and distributors are welcome, please contact us.
Exclusive license for international sales and distribution is also available.
MERDI is located in the USA. All International orders outside the USA will be shipped from our office and warehouse in the USA.