Interactive version of the graph on p. 42 of The Riddle of Literary Quality.
Figure 2.2: Number of books read out of 401 (left) and number of books reviewed (right).
Both graphs are interactive. On the line below the horizontal axis, you can select which part of the graph you want to zoom in on. By clicking on the bars in the graph, you can see how many respondents filled in a number in the selected range.