Lies My Teacher Told Me is a nonfiction history book consisting of the author's attempt to debunk various myths, untruths, and omissions in American history as taught to high school students through US history textbooks. The author analyzes 12 textbooks, mostly traditional texts but also including two "discourse" style books, around specific events in US History.
Throughout Lies, Loewen illustrates how Anglo centric the textbooks are in their selection and presentation of material, how they tend to present one-sided stories in order to preserve the "heroification" of certain historical figures (like George Washington, Christopher Columbus, Woodrow Wilson, and Helen Keller). For example, most of the textbooks paint a glowing picture of Columbus and how he "found" the "New World" (despite the land's previous occupation by indigenous people, the facts that many other explorers may have been in North America previously, and that Columbus enslaved and murdered thousands of indigenous people).

