Apple's excellent documentation on class clusters

FROM : Erik M. Buck
DATE : Wed Jan 02 22:00:06 2002

I was starting to write a few pages about class clusters for the upcoming
Cocoa Programming [Unleashed] book and I checked Apple's documentation for
any updates since the last time I read it.  I discovered the following:
http://developer.apple.com/techpubs/macosx/Cocoa/TasksAndConcepts/Programmin
gTopics/Foundation/Concepts/ClassClusters.html

Wow!  That is GREAT documentation. Good job Apple. The problem is that
anything I write is going to be redundant.  If all of Apple's documentation
was as clear, concise, and correct as that, nobody would need a new book...

So what do the great minds of this forum think.  Should the already small
section on class clusters consist of entirely of the URL to Apples
documentation ? Should I attempt to present the same information in my own
words and probably not do as well ? Do any of you have any questions about
the three printed pages or so represented by Apple's document that I could
perhaps answer to add some value to my discussion of the topic ? Should I
just drop the subject from our outline ?