By PATRICIA COHEN

A popular video on YouTube shows Kellie Pickler, the adorable platinum blonde from "American Idol," appearing on the Fox game show "Are You Smarter Than a 5th Grader?" during celebrity week. Selected from a third-grade geography curriculum, the $25,000 question asked: "Budapest is the capital of what European country?"

Ms. Pickler threw up both hands and looked at the large blackboard perplexed. "I thought Europe was a country," she said. Playing it safe, she chose to copy the answer offered by one of the genuine fifth graders: Hungary. "Hungry?" she said, eyes widening in disbelief. "That's a country? I've heard of Turkey. But Hungry? I've never heard of it."

Such, uh, lack of global awareness is the kind of thing that drives Susan Jacoby, author of "The Age of American Unreason," up a wall. Ms. Jacoby is one of a number of writers with new books that bemoan the state of American culture.