Nearly one-quarter of U.S. adults—21%—are illiterate, and 130 million people can’t read a simple story to their children or sound out more than a few basic words. The problem isn’t confined to high school dropouts, those with disabilities, and non-¬English speakers. It affects university students, working professionals, and those who grew up speaking English at home. It goes beyond the inability to enjoy books, skim websites, and write emails. Medication instructions, ingredient labels, and posted warnings can conceal deadly risks from nonreaders.The problem starts in elementary school, where a battle over how to teach reading continues to rage and fewer...