Marcin Wodziński
Professor Wodziński is the first scholar to perform a complete study on Hasidic Jewish communities. His study required him to collect and catalog all Hasidic community phone books. This effort allowed him to estimate the size of the current Hasidic Jewish population. Professor Wodziński found that there are around 750,000 Hasidic Jews in the world today, with most living in the United States and in Israel.