Alfred Lindesmith, who everyone called “Lindy,” is one of my heroes. He spent most of his professional life studying opiate addiction, and his books (especially Addiction and Opiates) on that topic are classics of research method. I relied heavily on his work in formulating the last chapter of Tricks of the Trade. I might also mention that Lindy loved playing golf and liked to play the horses. Since he taught at Indiana, he didn’t have much chance to indulge the latter pastime, and liked to wangle invitations to teach in Southern California so that he could get to the track conveniently.