In 1975, twenty-one-year-old Dvorah Telushkin wrote a letter to the great Yiddish writer Isaac Bashevis Singer, offering to drive him to and from a creative writing class in return for permission to attend the course. The literary master, then seventy-one, accepted the offer, which led to a twelve-year-long apprenticeship for Telushkin. Throughout Dvorah Telushkin's tenure with Singer, she kept detailed diaries chronicling both their literary...