I have recently seen reference to the “chassidic classics”, a term which I understand encompasses works by the great rebbes of the 18th and 19th Centuries.
Examples that I have seen mentioned are the Kedushat Levi, Tanya, Noam Elimelech and Sfas Emes. However, I have struggled to find any good secondary sources dealing with them in enough detail to explain their contents and special characteristics.
I am keen to know more about this area, and I wondered if anyone could recommend a guide / overview to these and other texts.