I am not an author, but have had a few things published in other’s books. Best of both worlds if you think about it!
97 Things Every Software Architect Should Know by Richard Monson-Haefel. A couple of “axioms” AKA essays on software architecture.
Applying Domain-Driven Design and Patterns by Jimmy Nilsson. I wrote a section on unit testing with databases.
Java and Xml 2nd Edition (currently in 3rd edition) by Brett McLaughlin. I wrote demo code showing how JDOM could preserve the simple idea of concrete classes by using the Decorator pattern instead of providing interfaces for all node types.
Processing XML with Java by Eliott Rusty Harold