This book bills itself as "The Expanded Guide," and as long as you define "expanded" as "the manual that came with your camera, but with larger print and color photographs," you'll be satisfied with what it has to offer. Seemingly targeted at novices who want a somewhat clearer explanation of the basics than what Nikon's own manual provides, it does make you wonder if there's really a need for a newbie guide to Nikon's most expensive and professional DSLRs. While this book clearly explains how to operate the controls on the D3 and D3x, there is very little depth beyond that. In short, if you're new to Nikon, or if you bought a D3 or D3x as your first DSLR.... or, if you just want a more user-friendly version of the camera manual... then you may find enough here to justify the discounted purchase price on Amazon. Others should look for a different guidebook.
Thank you for taking the time to read this review and I hope it provided helpful information to guide your purchase decision.