Who deserves credit? Who is a prime borrower, and who is subprime? The stakes of these questions could not be higher: loans are essential to the education, transport, and housing of millions. Lauer has written a compelling history of how businesses assess creditworthiness, from nineteenth-century trade associations to contemporary data science mavens. Lucid and packed with fascinating detail, Creditworthy is an essential guide to the intersection of finance and surveillance.–Frank Pasquale, University of Maryland