Aaron Lansky, founder and president of the Yiddish Book Center. Aaron Lansky was a graduate student in Montreal in the late 1970s when he discovered that large numbers of Yiddish books were being discarded by younger Jews who could not read the language of their parents and grandparents. So he took what he expected would be a two-year leave of absence from graduate school, founded the Yiddish Book Center, and, in the summer of 1980, issued a public appeal for unwanted and discarded Yiddish books. At the time, scholars believed just 70,000 volumes were still extant and recoverable. Lansky and a handful of young colleagues recovered that number in six months and went on to collect more than a million volumes. Their work has been described as " one of the greatest cultural rescue efforts in Jewish history."