 Permabooks were designed with an unusual format of a paperback bound with stiff cardboard covers (with a "special wear-resistant finish") to simulate the look and feel of a hardcover book, and the company had previously published "Best Jokes for All Occasions", edited by Powers Moulton.The "Stop Me If You've Heard This One" Permabook featured a two-page foreword by Tinney, a one-page introduction by Bower, 66 pages of jokes by Bower, 85 pages of jokes by Tinney and 82 pages of jokes by Lehr.Under the heading, "P.S.