Um... has been reviewed in the Denver Post, the Pittsburgh Tribune Review, Santa Cruz Sentinel, New York Times Book Review, New York Times, New York Observer, Savannah Morning News, Austin American Statesman, Dallas Morning News, Seattle Times, Louisville Courier-Journal, San Diego Union-Tribune, Wall Street Journal, Cleveland Plain Dealer, The Texas Observer, Book Page, Library Journal, Publishers Weekly, Kirkus Reviews, The Week, The New Yorker, Minneapolis Star Tribune, Tampa Tribune, the Charlotte Observer, the Oxford Press, Deseret Morning News, Chicago Sun-Times, Chicago Tribune, and The Taunton Gazette.