BOOK ’EM: What’s a new gadget without a fashion component? In launching its much-hyped proprietary e-Book reader, dubbed Nook, Barnes & Noble has tapped several designers to add some flair. Kate Spade, Jack Spade, Jonathan Adler and Tahari are the first fashion brands to create cases for the $259 device, which boasts a color touchscreen for navigation, 3G technology and Wi-Fi access to choose from 10 million books. Prices for the cases range from $19.95 to about $125. The firm is taking preorders for the Nook on nook.com, and it will hit the retailer’s 1,300 stores starting next month.