Had not heard of this guy, but ended up reading for hours after looking into him.
I really hope this thread continues, and I highly recommend people look into R. Shaul Shimon Deutsch’s “Larger Than Life.” The second volume of it is viewable as a pdf if you search for it. He is a Lubavitcher and most of the biography still reads like someone really into the rebbe, but he is also committed to correcting some of the outright lies often repeated. Examples include: the Rebbe having studied at the Sorbonne, the Rebbe having learned with/known Einstein, the Rebbitzin having been a translator for the NY Public Library.