Digital classic books are just a plug insert away! Plug in this little USB library to read 3,000 classic books, including War and Peace, Little Women, Huckleberry Finn and much more! Advanced functions let you scroll up and down to read, turn pages, return to previous page, access table of contents, bookmark, search text, change fonts and more. System requirements: Windows XP SP2 or above, Windows Vista & Windows 7 (32/64 BIT), CPU: 2GHz or above, memory: 1GB or above, USB 1.0 or 2.0 (2.0 recommended for speed). Not compatible with Mac computers. 2 1/4" long x 1" wide.