For over twenty years music historian Gregory Alexander (aka Professor Moptop) has taught about rock and roll music of all types and is also a tremendous fan of holiday music as well. For this season he has prepared an all ages all inclusive class on holiday music, a subject which covers many categories from traditional Christmas, Hanukkah and Kwanzaa, to songs about winter, songs about Santa, novelty records, those sung by children and several others. To register, please call the library at 708-687-3700 or email kspringer@acornlibrary.org.