Rachel 'Angel Mapper' Cordone's UDK tome Unreal Development Kit Game Programming with UnrealScript: Beginner's Guide has been released and is available from Packt and Amazon in digital and paperback. Rachel has definitely made her mark in the world of Unreal Editing, winning multiple awards in various Make Something Unreal Contests and having worked on a number of professional projects, so no doubt she'll have a lot to say. Congrats on the release, Rachel!
Unreal Development Kit Game Programming with UnrealScript: Beginner's Guide is the definitive book for UDK users who are new to the UnrealScript programming language, as well as for programmers who wish to expand their skills to include UnrealScript. Instead of writing dry, boring code the book uses practical examples of the topics discussed to build and expand on an actual working example game!