I have not read a good book for educators...if she is gifted herself than I think the book Living with Intensity is a must read, and would help her be a better teacher in general and to gifted students in particular. I personally really like James Webb, but his book is for parents, not teachers...but she could certainly apply it in the classroom.
I liked the Eide's "Mislabeled Child" better for this... I thought it gave a better framework for all sort of problems and the confounding gifted factor.
