Help with FFIV DS Guide Books

I’d like to invest in just one Japanese FFIV DS guide book. I’ve been looking for the descriptions of each and I haven’t gained any more information. My choices are the FFIV Official Final Guide, FFIV World Master Guide or FFIV Official Complete Guide. By the names you may see my problem of which one to choose. I’ve only seen some preview scans of the World Master guide. Does anyone have any info on what is contained in the others like 3D model captures from the game, characters, maps, monsters etc? I’d be more interested in pictures of characters, CPUs, monsters and items.