“Overweight Sensation: The Life and Comedy of Allan Sherman.” Author Mark Cohen discusses the life of the Grammy-winning comedian and plays some of his music, including the 1963 hit “Hello Muddah, Hello Faddah.” At Osher Marin JCC, 200 N. San Pedro Road, San Rafael. 4 p.m. Free. www.marinjcc.org.
“Jewish Radicals.” Editor Tony Michels discusses the history of Jewish political radicalism in the U.S. prior to World War II. At Jewish Community Library, 1835 Ellis St., S.F. 7 p.m. Free. www.jewishlearningworks.org/library.