41 Education and entertainment services, namely, performing plays and other dramatic and musical-dramatic works by Shakespeare and other authors and playwrights; sponsoring and conducting educational and entertaining classes, lectures, exhibits, discussions, concerts, theatrical tours and other programs and events relating to such plays and other works, their productions, and their authors and playwrights; and publishing educational books, booklets and other informational materials relating to such works, playwrights and authors and to the performers in such works