By now many of you have heard about, considered reading (if not deterred by its 762-page girth), and even dipped into Robert Gordon's The Rise and Fall of American Growth. This tome well deserves the attention that it has received for addressing a burning issue today: economic stagnation and its origins. Taking the long view with both summary statistics of trends in growth between 1870 and the present, but also with an amazing variety of graphs and charts detailing patterns of growth in a wide variety of industries, Gordon chronicles the impact of the second and third industrializations. His oft-repeated argument is simple, that growth was revolutionary in the history of humanity in the century after 1870, resulting from the effects of the second industrialization (launched by electricity and the internal combustion engine especially), and raising living standards in profound but unrepeatable ways. Though he finds the 1920s to 1970 to be most dramatic in growth rates (especially resulting from technology and innovation measured by total factor productivity [TFP]—accounting for growth outside resource inputs), after 1970 that productivity was barely a third of the previous century despite the digitalization of the third industrialization, which contributes only 7 percent of gross domestic product (GDP). This lag is especially evident since 2004 with no reasonable prospects for reversal, and the decline in the rate of growth has been accompanied by increasing income inequality with demographic lags and other “headwinds” further threatening growth. The argument is predominately based on technological change, though Gordon recognizes the role of government and even unions (in raising wages) and less often business innovation in advancing growth. Much of the book's reception has been shaped by economists and economic historians addressing this bold claim, and it has been compared with Thomas Piketty's even more ambitious work on the trend toward inequality.