Take a photo of a barcode or cover
Full disclosure: Staunch Franzen fan here, confirmed in my staunchness after Purity. My experience of the novel was uneven, loving some parts and squirming my way through others. In retrospect, squirming seems to be exactly the effect Franzen must have aimed for, what with sexual deviancy, cold-blooded murder, and, ultimately, the idea that guilt never just goes away; that we are all victims of our inner demons; and that meaningful relation to others--through love, parenthood, friendship--is the only way to make it through life and come out clean on the other end. I happen to love the main character, and I find Franzen's cultural stance--much reviled by others--to coincide perfectly with mine, so as social critique the book really works for me. His elaborate analogy between Communism and the Internet, found in "The Killer" chapter, is not just brilliant--it is the mark of a great mind and the work of a virtuoso of language.