I remember the chapter names (approximately):
Chapters 1-3 Basics about XML
Chapter 4 XML Information Set
Chapter 5 Validating XML (in fact this deals with DTD)
Chapter 6 XML Schema
Chapter 8 XPATH
Chapter 9 XSLT
Chapter 10 XLINK, XPOINTER
Chapter 11 DOM
Chapter 12 SAX
Chapter 14 Data modeling (I don't think that you need it, but it is an interesting read)
Chapter 20 XSL-FO
If you still have time read the chapters about RDF (the word RDF is contained in the title).
As for XML security: I did not read anything about this. When I decide to study something I do it very well, but if I am not interested I will not do it at all
I forgot about this: also read the chapter about SOAP.
[ April 18, 2005: Message edited by: Razvan MIHAIU ]