First and foremost, I’d like to thank Ken Jones at O’Reilly for his work to design the Exam Ref book series, for choosing me (once again) as an author, and for his work as an editor. It’s been great to work with you, as always, Ken!

I’d also like to thank Bill Chapman, the technical reviewer, Holly Bauer, the production editor, Dan Fauxsmith, the production manager, and Susan McClung, the copyeditor.

Finally, I must thank my friends and family for their support, especially Chelsea and Madelyn Knowles (for their support, patience, and companionship) and John and Linda Antonino (for always being gracious hosts).