Konjiki no Gash!! Full Course Book; Golden Gash!! The Full Course Guide Book; Zatch Bell!! Full Course Book; 金色のガッシュ!! まるかじりブック; Konjiki no Gash!! The Full Course Guide Book
The Sunday Official Guide, which includes previously undisclosed information for the first time, a fun column, and the mysteries of Zatch Bell revealed by the mangaka.
