When Viv flies to Buenos Aires for a secret liaison with Clive, there is no ambiguity as to their intentions-adultery. But this is where conventionality terminates in Stephen Marche's new novel, Love and the Mess We're In, a work whose lyric richness and inventiveness skillfully embody the tumbles and turns of love in a postmodern age. Marche collaborates with award-winning typographer Andrew Steeves to create richly polyschematic book pages whose...