Education
In 1985 he was awarded a Doctor of Philosophy in linguistics from the Institute of Linguistics of the Academy of Sciences of the Union of the Soviet Socialist Republics in Moscow.
In 1985 he was awarded a Doctor of Philosophy in linguistics from the Institute of Linguistics of the Academy of Sciences of the Union of the Soviet Socialist Republics in Moscow.
He was until 1993 a Soviet and Russian citizen and since then has been a resident and citizen of the United States residing in Cleveland, Ohio. Doctor Kolker learned Esperanto in 1957 and is the author of articles on interlinguistics, book reviews and three famous Esperanto textbooks for students of different levels. Due to the great popularity of his book Vojaĝo en Esperanto-lando eo:Vojaĝo en Esperanto-lando (Travels in Esperanto-Land), which is both a proficiency course in Esperanto and a guidebook to Esperanto culture, he is known to many as a guide to Esperanto-Land.
Foreign two decades he headed a large-scale Esperanto correspondence course in Russia that graduated around 900 students.
He also taught Esperanto at American universities in San Francisco and Hartford. Currently he runs the International Proficiency Correspondence Esperanto Course and is also Vice President of the International Examination Board for the International League of Esperanto Instructors (ILEI).
He has lectured and spoken publicly at several World Congresses of Esperanto and in 2000 he directed the theme of the 85th World Congress of Esperanto in Tel-Aviv. Вклад русского языка в формирование и развитие эсперанто ( The contribution of the Russian language to the emergence and development of Esperanto).
- Moscow: Union of the Soviet Socialist Republics Academy of Sciences, Linguistic Institute, 1985.
- 23 p. Synopsis of doctoral thesis in Russian language. Textbooks.
Academy of Esperanto. Universal Esperanto Association. Akademio Literatura de Esperanto.
Russian Esperantist Union.
World Esperanto Youth Organization. International League of Esperanto Teachers]
Kolker is a member of the Academy of Esperanto, an honorary member of the World Esperanto Association (Universala Esperanto Asocio), and an associate editor of the monthly magazine Monato.