Trouble understanding the standard methods


Hi all,
While I have taught myself Objective-C itself, I keep getting stuck when I read about the methods that start appearing about this chapter. Methods like the “withNibBundle” methods, I just can’t conceptualise how this and “didFinishLoading” and so on all hang together. Can anyone direct me to some sort of overview that perhaps lists all these standard methods in some kind of order? If you know what I mean.