 He received many awards during his career including the Birkhoff Prize in Applied Mathematics in 1973 and the Steele Prize in 1982.On 5 May 1985, jointly with Olga Arsenievna Oleinik, he was awarded the laurea honoris causa in mathematics by the Sapienza University of Rome.All John's published works, excluding monographs and textbooks, are collected in references and with remarks and corrections by himself and commentaries by Sigurdur Helgason, Lars Hörmander, Sergiu Klainerman, Warner T. Koiter, Heinz-Otto Kreiss, Harold W. Kuhn, Peter Lax, Louis Nirenberg and Fritz Ursell.