Critics voice concern over this proposed Mexican-American heritage textbook. Some scholars on in the subject say that the textbook, "Mexican American Heritage," is riddled with factual errors, is missing content and promotes racism and culturally offensive stereotypes. Courtesy of Momentum Instruction hide caption

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Courtesy of Momentum Instruction

Jonathan Franzen, pictured here at The New Yorker Festival Fiction Night in 2009, won the National Book Award for his third novel, The Corrections. Joe Kohen/Getty Images hide caption

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Joe Kohen/Getty Images

Episode 573: Why Textbook Prices Keep Climbing

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Kansas Board of Education members look over language for a science textbook in 2007. The fight over the teaching of evolution has been particularly fierce in Texas, which because of its size influences many textbook publishers. Charlie Riedel/AP hide caption

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Charlie Riedel/AP