In the early nineties, Nancy Kress took the SF world by storm with her multiple award-winning novella, "Beggars in Spain," which became the basis for her extremely successful Sleepless Trilogy (comprising Beggars in Spain, Beggars and Choosers, and Beggars Ride ). Since then she has written more than a dozen novels, most recently the well-received Probability Trilogy , which Booklist praised saying "Kress's characterizations are as sound as ever,...