Al Jaffee’s magnificent anti-authoritarian fold-ins, gracing the inside covers of every MAD magazine since 1964, have been a longtime favorite around here. For the past half-century, Jaffeee, just as brilliant today at 90, has been poking fun at the established political order with his clever satirical cartoons that made no topic, ideology, regime, politician or pop star safe from skewering as the reader simply folds the page to align arrow A with arrow B and reveal the hidden gag image. Now, from Chronicle Books comes The MAD Fold-In Collection: 1964-2010 — the definitive treasure trove of Jaffee’s genius, a formidable four-volume set featuring 410 fold-ins reproduced at original size, each thoughtfully accompanied by a digital representation of the folded image so you wouldn’t have to actually fold your lavish book.