As part of the promotion for GWT in Action, Manning has released two chapters of the book for free. When Adam and I were asked which chapters we wanted to release, we were in complete agreement.
Chapter 2, "Creating the default application", is a 30 page getting started guide. If you are new to GWT and having some difficulties getting started, this chapter will walk you through it. It covers the tools, the code they generate, and how to set to import the project into your IDE.
Chapter 10, "Communicating with GWT-RPC", is the first of four chapters in the book that cover browser-server communication. This chapter covers the GWT-RPC mechanism in detail, including prerequisite information about asynchronous communication and browser security restrictions.
Adam and I picked these two chapters because we thought that they would provide the most benefit to new developers trying out GWT without them needing to buy the book. Don't misunderstand, we really enjoy book sales, but we also like being able to give away something that is useful to others.
Hopefully more than a few of you will find these chapters useful.