Richard Hofstadter was an American historian and public intellectual of the mid-20th century. Hofstadter was the DeWitt Clinton Professor of American History at Columbia University. Rejecting his earlier historical materialist approach to history, in the 1950s he came closer to the concept of "consensus history", and was epitomized by some of his admirers as the "iconic historian of postwar liberal consensus." Others see in his work an early critique of the one-dimensional society, as Hofstadter was equally critical of socialist and capitalist models of society, and bemoaned the "consensus" within the society as "bounded by the horizons of property and entrepreneurship", criticizing the "hegemonic liberal capitalist culture running throughout the course of American history".

The Age of Reform is a 1955 Pulitzer Prize-winning book by Richard Hofstadter. It is an American history, which traces events from the Populist Movement of the 1890s through the Progressive Era to the New Deal of the 1930s. The Age of Reform stands out from other historical material because Hofstadter's main purpose for writing is not to retell an extensive history of the three movements, but to analyze the common beliefs of the reform groups in our modern perspective to elucidate historical distortions, most notably between the New Deal and Progressivism.