This is the online lexicon of the Hasidic leaders. Currently the lexicon has some 3,500 entries, most of them in the very basic form of a simple questionnaire that establishes only the most essential data and relations of the people included in the database. The goal of the lexicon is twofold: to establish an authoritative resource for the identification of Hasidic dynasties and individual leaders (both the tsadikim and their wives and others who played a role in Hasidic leadership) and to provide authoritative biographical articles on them.