I didn't ask the subject of the book when replying to say Yes, but I am sure the reference will be to the Peppered's hallowed place in the science of genetics, through the rise and fall of the melanic, or dark, version of the species and its relationship with the parallel rise and fall of pollution. This was most entertainingly illustrated by the great entomologist and doctor Sir Cyril Clarke, who famously plotted a graph showing similar curves for (a) the decline of the melanic Peppered in the UK and (b) the rise in centenarians here during the same period, when much of the dreadful, unhealthy legacy of our industrial past was at last brought under control.
Scientifically, the Peppered plays a wider role as a striking and easy-to-understand example of Darwin's natural selection in action, though you will find many a furious counterblast to this from Creationists online. My pictures show, at the top, today's Peppered Moth and below, the picture of both types when they flew in together on the same night in 2013 - the one which Cornell UP may use. I hope they do.
The other feature of this moth which I've noticed over the years is how neatly it positions itself in the eggboxes which happened again this morning - the wings conforming almost exactly to the angles of the cone. This has been taken in previous years to the lengths of the moths sitting on the barcodes which have a vaguely similar black-and-white pattern to their own. The point about the correlation of melanism with pollution, I should have explained earlier, is that in sooty areas the dark moth was less likely to be predated than the standard, peppered one which conversely survives better in cleaner surroundings where the melanic moth stands out as a dark splodge.