Digital Classic Books are just a plug insert away! Plug in this little USB digital library to read 3,000 classic books, including War and Peace, Little Women, Huckleberry Finn, Black Beauty, Great Expectations, Moby Dick, Sherlock Holmes and thousands more! No set up required simply plug and play! 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. Digital Classic Books will provide you and your family hours of entertainment. Makes a great gift!