In One Nightstand, celebrity readers and writers join us at the blond in 11 Howard to discuss some of their favorite books, allowing us to learn about their tastes and lives in the process.Some 5% of Americans now belong to a book club, though few, one suspects, are quite as elegant as the one Julia Louis-Dreyfus has with her friends in Santa Barbara. “I do it with my husband,” says the 65 year-old Emmy-winning comedian and actor. “It's a couple…