So I’ve got through the first couple of chapters of Oracle Fusion Applications Development and Extensibility Handbook (Oracle Press). The book starts with a presumption of minimal knowledge so the first chapter provides an excellent high level overview on the framework and assembly of Fusion Applications and some of the principles such as Weblogic node management. Although an appreciation of non Fusion Apps will give you a sense of some ideas such as Flexfields would be useful at this stage, but they are explained in a lot more depth later on.
Chapter 2 moves onto the different kinds of customisation that can be performed and how those customisations are achieved from user configuration through to tools in the Fusion Apps and onto JDeveloper and the Fusion Apps libraries. The interesting thing is that all though it is clear a lot of work has gone into managing the dev and test cycles on a shared Fusion Apps platform including potential change conflict management there seems to be little for direct linkage or built in configuration management.
In terms of a book, it has started very well, providing a sense of over all shape of Fusion Apps in a very readable and informative manner. I think this is going to be a informative & easy read.
Oracle Fusion Apps at Google