Changes to defaults

[John B. Egger]

This is a really newbie-type question, so feel free to point me to the 
proper place in the User's Guide or elsewhere. I've looked through it 
without finding the answer.

I'm using 1.4.3 in Linux and Document Class: Book, and would like to 
change the chapter title and page header formats from those that "book" 
automatically creates. The defaults aren't bad; they just aren't my 
preference. So far, I haven't figured out how to change them.

--John
Registered Linux User #291592