weinstock became the music editor for alfred a. knopf in 1943 and remained associated with that publishing house for the remainder of his career, apart from a period between 1959 and 1963 when he worked for doubleday and macmillan. in 1943 he also published the first of his composer biographies, "tchaikovsky". it was followed by "handel" (1946), "chopin: the man and his music" (1949), "donizetti and the world of opera in italy, paris and vienna in the first half of the nineteenth century" (1963) and "rossini" (1968). his last biography, "vincenzo bellini: his life and his operas" was published shortly after his death in 1971 and was the first, full‐length critical biography of bellini in english.