Kuntres U`maayon in two volumes: the original Kuntres Uma`ayon had a diary by the Rebbe Rayatz in the introduction - here the diary and the Rebbe Rashab`s maamar are in 2 separate volumes.
Kuntres Etz Hachaim from the Rebbe Rashab, complete with explanations of the text and complex concepts contained therein, sources and punctuation to make it easier to learn & comprehend.