I am a linguist, interpreter, and English test book author.

I have written books on TOEFL, GMAT, and GRE  preparation, and also for students of beginner level, intermediate level, and advanced level.

You can see and buy some of my books on Amazon.

I  speak English, Russian, German, Spanish, French, Turkish, and Greek.

You can also look up - Marquis Who's Who - for comprehensive biography data.