Just to finish off my review of this book -
Chapter 5 - Setting up B2B Transactions
discusses the B2B lifecycle from creating documents, trading partner agreements, reporting and monitoring etc. It also introduces integration with SOA Suite and enterprise manager.
Chapter 6 - SOA Suite Integration
A step by step guide to creating a B2B SOA Composite. Also contains a very useful section
on B2B design best practices.
Chapter 7 - Reporting and Monitoring
Covers usage of B2B itself, Enterpise Manager and BAM for reporting purposes.