I'd view this as an excellent companion to the Looking Glass Wars book by Beddor even if this is categorized as a children's title. Excellent graphics, tells the story of Alyss and is interactive.
Enjoyable, fun activity and interactive book for children, especially the letters and the card deck, but the writing could be very difficult to decipher at times, especially for younger readers.(For those interested in it as a companion to Beddor's series, it does not contain any new information.)