<DIV><p>Michael Sells brand new Imagine That series?short, popular histories of how the past didn't quite happen?launches with four titles this year.</p><p>Each book is a flight of imagination that explores how the smallest changes to history could have spiraled out of control.</p><p>Would a happy ending to <I>Casablanca</I> have led to a more prejudiced world? Would the death of a cat have been the most costly road accident in the history of technology?</p><p>Imagine That . . .</p><BR></DIV>