I'm a Ruf fan, too, but some here are not. Just be aware that her lists of characteristics should be used as a tool to help you rule IN kids as GT, but should NOT be used to rule OUT kids as GT. What I mean is that just because your child doesn't do all the stuff that the kids on her lists do doesn't mean your child is not GT. One tool among many...
For me, though, "Losing Our Minds" was the most useful book I read. It got me past my GT denial, which I really needed.
A close second for most useful book was "Creative Home Schooling: A Resource Guide for Smart Families" by Lisa Rivero. Even for non-HSing families, it contains a lot of useful info about how to approach living and working with a GT child. It even helped me understand myself a little better.
