One of the first books that I read, and which remains resonant is David Albert's And the Skylark Sings with Me: Adventures in Homeschooling and Community Based-Education. It's wonderful and inspirational, and he touches on things like beauty, laughter, community, and deep passions for learning that aren't conventionally a part of the gifted education narrative/s.

He never explicitly uses the g-word or unschooling, but it's fairly evident both of his children are very gifted and the the learning described in this book is child-led with a pacific NW unschooling flavour.

HTH,
M.

M.