The Prima game guide for Dragon Age Origin. This edition of it is hardback and contains the usual walkthrough things like equipment lists, bestiary, walkthrough etc.
Also has bonus material: A special 100+ page section gives an in-depth look into the workings of Bioware Studios, developer of Dragon Age. This behind-the-scenes look features a studio biography, concept artwork, interviews with key members from each team, and much more.
For 12.79 it seems like a pretty good offer!