Black witch doesn't mean dark magick, it means that the practitioner identifies as Black.
I highly recommend Jailbreaking the Goddess to people who are unfamiliar with intersectional feminism
Sheds light on perceived as darkness and points out the most dangerous part of
Five myths about Aleister Crowley debunked.
Afro-Brazilian Tarot, by Alice Santana and Guiseppe Palumbo Kit: Llewellyn Worldwide, 0738709603, 78 cards
This book will open many pathways for you, and is well worth the investment