3 books
The Release 12 Primer - Shining a Light on the Release 12 World
Installing, Upgrading and Maintaining Oracle E-Business Suite Applications Release 11.5.10+ (Or, Teaching an Old Dog New Tricks - Release 11i Care and
Installing, Upgrading and Maintaining Oracle Applications 11i (or, When Old Dogs Herd Cats - Release 11i Care and Feeding)