In 1975 the three founders cashed in on a buy-out agreement for National Lampoon; Beard received US$2.8 million and left the magazine. After an "unhappy" attempt at screenwriting, he turned to writing books of humor. Those that have reached the New York Times Best Seller list are Sailing: A Sailor's Dictionary (1981, with Roy McKie), Miss Piggy's Guide to Life (1981), Leslie Nielsen's Stupid Little Golf Book (1995, with Leslie Nielsen), French for Cats (1992, with John Boswell), and O.J.'s Legal Pad (1995, with John Boswell and Ron Barrett). Other notable books include Latin for All Occasions (1990), The Official Politically Correct Dictionary and Handbook (1992, with Christopher Cerf), and What's Worrying Gus? (1995, with John Boswell).