After more than 35 years, the walls at Paperbacks Plus in Mesquite couldn't cope with all the books. So the owners expanded into the city proper, setting up two new shops under the name Lucky Dog Books. Shelf after shelf of volumes greets the eye at each location; alongside the paperbacks and hardbacks sit myriad other forms of media, from used CDs and DVDs to LPs, magazines, and comic books young and old. Chairs dot the landscape at all three bookstores, inviting customers to flop down and flip through the pages of a novel or pretend to read a comic book that conceals a history textbook. In addition to selling its wares, Lucky Dog Books also offers cash or store credit for used items and takes its services on the road with a Books at Home program.