For further study into developing a more justice- and humanity-centered philosophy, the most critical tools with which you must begin are an open mind and an open heart. The rest will develop in time.
My reading arsenal is eclectic; my hunger to know more leads me in all directions, and my curiosity and impassivity beckon me to follow.
Here are a few things I've read, many of which I am still working on.
Some of my favorite writers, off the top of my head:
Audre Lorde
Angela Y Davis
Stuart Hall
Michel Foucault
Howard Zinn
Noam Chomsky
GA Cohen
Manning Marable
Fred Moten
Ruthie Gilmore
David E James
Joy James
Mike Davis
Jerry Mander
Hans Magnus Enzensberger
Antonio Gramsci
Amartya Sen
Aaron Doyle
Mattilda Bernstein Sycamore
Pema Chödrön
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Area under construction...