Not everyone considers the many ways in which everything about their social surroundings could be different if a seemingly disconnected historical event were altered. According to Johnson (Immortal Lycanthropes) , the possibilities of this problem are seemingly endless. This book is a highly entertaining piece of contemplative historical interpretation, the ultimate presentation of “what if.” While witty and thought-provoking, this work can also be challenging to understand, as Johnson’s scenarios—which are so carefully presented—did not actually occur. But the author thoroughly expands upon his ideas, such as what would have happened if Sigmund Freud had not been addicted to cocaine? Johnson continues his journey through historical event after event, using wordplay and humor to highlight how the origins and power of one small difference can change the entire course of history. VERDICT This book is highly recommended for those with an interest in world history, Western civilization, and alternative histories.