Compiled By: Rabbi Elie Matusof
Otzar Pirushim is a 584 paged encyclopedia of commentaries on the first 3 chapters of Tanya, compiled from hundreds of books written by Geonim-Chassidim, Roshei Yeshivos, and Mashpyim, from each of the seven generations of Chabad. This book is unique in that it also contains a wealth of Heoros written by students in the numerous Torah journals published by Yeshivos worldwide.
The material is organized into sections so that the reader can easily refer to any particular phrase or word in Tanya and subsequently find an abundance of questions, elaboration, and discussion. And is appended by a useful index of names for those who want to look up a note or an explanation of a particular author.
Compiled by Rabbi Elie Matusof, this masterpiece consists of more than 500 pages and spans the first three chapters of Tanya