Likkutei Sichos, literally, "Collected Talks" (Hebrew: ליקוטי שיחות) contains both the scope and the core of the teachings of the Lubavitcher Rebbe, Rabbi Menachem Mendel Schneerson, and is the most authoritative source-text for Schneerson's (often novel) way of explaining Judaism and the world writ large. Likkutei Sichos covers a range of topics including ideas in Jewish philosophy and theology, biblical and Talmudic commentary on biblical, kabbalistic expositions, moral and practical directives, and perspectives on world events. The essays were transcribed from the public talks given by Rabbi Schneerson and are compiled in over three dozen volumes - soon to print the complete set of over one hundred volumes, arranged by the weekly Torah portion and special occasions in the Jewish and Hasidic calendar.Rabbi Schneerson's primary vehicle for conveying his teachings were the farbrengens held on Shabbat, the festivals, and special occasions in the Chabad Lubavitch calendar, at which he would speak for many hours. Of the many of thousands of talks that Schneerson delivered, those that were the most basic to his weltanschauung and message were compiled in the Likkutei Sichot, which originally appeared in weekly pamphlets. He reviewed and extensively edited each of these transcriptions before it went to press, making the Likkutei Sichot the authoritative medium with which to disseminate his teachings. The volumes of Likkutei Sichos are published by the Lubavitch Publication House Kehot Publication Society. The edited Sichos represent much of Schneerson's central teachings, and unique spiritual voice for the generation, with other major works being the deeper, mystical Maamarim (Hasidic discourses), unedited talks, personal correspondence etc. The nature of his leadership and thought marks a culminating fulfillment of Hasidic history, representing the fullest measure of the Hasidic ideal to disseminate the "wellsprings" of Chassidus in the widest and most accessible forms, and united with the other dimensions of Judaism. The many aspects of Likkutei Sichos present the most accessible form of the Rebbe's thought, and its practical application. Source: Wikipedia (en)