http://www.gnmagazine.org/devil/
This is fairly interesting. So far (I've read about a page and a half), it's not the typical "convert-to-our-religion-or-you-will-burn" type book. It seems to show you how much evil there really is around you. (Keep in mind I'm on the second page and have briefed through.)
This actually comes though, and apparently there's other booklets you can find on the site.
Is There Really A Devil? booklet from gnmagazine 
Linear Mode
