Here I share links to material offered by InterGifted and the InterGifted's Founding Director Jennifer Harvey Sallin.

What is Giftedness
https://intergifted.com/what-is-giftedness/

Levels of Giftedness
https://intergifted.com/high-exceptional-profound/

Living with Intensity: Giftedness & Self-Actualization
https://intergifted.com/living-with-intensity/