A linear exposition and commentary on the Tanya of R. Schneur Zalman of Liadi, founder of Chabad philosophy. Beginning as a weekly Yiddish radio program in 1960, Rabbi Yosef Wineberg drew upon teachings received from Chasidic scholars at the renowned academies of Lubavitch in Europe and the writings of seven generations of Chabad Rebbes. Each lecture was examined and amended by the Lubavitcher Rebbe, Rabbi Menachem M. Schneerson, so that much of the material includes the Rebbe's insights and explanatory comments. Guiding the reader through every phrase of the Tanya, this most authoritative guide is a well-lit and accessible gateway to the Tanya, illuminating the mystical, often elusive, Talmudic, Kabbalistic, and Scriptural verses and concepts. It fills many gaps in what the terse Tanya text assumes to be the reader's background knowledge. In the 1980s, the lectures were translated and published, opening the breadth and depth of this work to English-speaking students. For its 25th anniversary, Lessons in Tanya has been redesigned as a permanent treasure for a new generation of seekers. This new and revised edition has received an aesthetic face-lift featuring clear design and layout to enable continuous side-by-side study flow, with vowelized and punctuated Hebrew text, interpolated commentary, clear daily study indicators, and editorial updates and corrections.