Whether you're a literary snob or a just-for-fun book enthusiast, you'll love these reader-friendly apps. At the touch of a button, you can gain access to thousands of classic reads, popular audiobooks, and comic books galore — or use your imagination to create your own. Type A about your bookshelf? Catalog your personal library with a simple, easy-to-track database. From book reviews to bar code technology, these six apps will help you indulge your literary obsession.