The Code Geass Deluxe Archives (also listed on the site as “Gorgeous Production Materials Collection” is an embossed box full of goodies for fans of the series.
Also coming out next month is the Takahiro Kimura Illustration Collection, a new art book of original art, character settings, and as-yet-unseen works.
The box contains three books: one of character designs, one of key animations, and one of Knightmare Frame mechanics.