In my last Kirkus column, I took a look at A.E. van Vogt, and talked a little about how authors in the 1950s began to adapt to changes in the publishing industry. By 1952, the publishing industry had shifted to paperback novels. One of the more memorable types of publication was Ace Books with their double novel series, which paired up two short novels in a single book. Futurian founder Donald Wollheim was behind this move, and helped to cement science fiction literature in the new paperback field.