In this month’s email from the National Yiddish Book Center is an announcement of a lovely slide show exhibit of Yiddish book covers by Izak Rejzman, executed in the middle of the last century. The landing page also contains some brief biographical remarks.
I wish I had known about this material when I was putting together my Hebrew typography lecture, and will surely use some of them next time I teach that class:
http://www.yiddishbookcenter.org/slideshow/book-covers-by-izak-rejzman