Just got it in the mail. Here are some stats:

It comes in a nice folder case, which both books have nice sleeves for each. The art book has both in-game and hand-drawn pictures. Un-numbered pages, can't tell you how many.

The strategy guide is AWESOME! Has all summons, locations, and quests. All side-quests are in the back. All weapons, items, etc. Very detailed battle description. About 350 pages.

All together, weighs roughly 3 lbs.