The Official Guide to Ancestry.com
By Morgan, George G.
Yes, Ancestry.com is pay genealogy's 800-pound gorilla, but in some cases it's the only game in town. To make sure you're getting your money's worth when you use it, you really do need a good printed guide:
"Whether you are coming to Ancestry.com for the first time or have used it for years, you need The Official Guide to Ancestry.com. Written by noted genealogist and lecturer George G. Morgan, this official guide takes you inside the #1 website for family history research for an unprecedented tour. Become more proficient with searching the site. Explore obscure databases you didn't know existed. Create and develop your own family tree. You will learn to do all of these things and more in The Official Guide to Ancestry.com. You've always known Ancestry.com was a valuable resource. Now you can learn to use it like never before."
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