Primary Sources offers 27 full or excerpted documents, speeches, or testimony from the period. The documents are arranged in four thematic chapters with each entry including an introduction, "Things to Remember" while reading the document, definitions of difficult terms, and a follow-up of what happened after the document was published. Among the documents are excerpts from Adam Smith's Wealth of Nations and Upton Sinclair's The Jungle, letters from Luddites, newspaper accounts regarding the telegraph, and an excerpt from the U.S. Supreme Court decision Northern Secu rities Co. v. United States, 1904. Forty black-and-white photographs, sources for further reading, a time line, and an index round out the Primary Sources volume.