The opposite of racist isn't, as Ibram Kendi states, not racist.
The opposite of racist is anti-racist.
Antiracism is a transformative concept that reorients and reenergizes the conversation about racism—and, even more fundamentally, points us toward liberating new ways of thinking about ourselves and each other. Using Kendi's How to be an Anti-Racist as a guide, we have collected a handful of books that help elaborate strategies, offer historical perspectives, and provide ways forward for a country deeply marred by racism.
See also: the Anti-Racist Nature Writing Syllabus.