The late, great, Maurice Natanson, himself a student and friend of Alfred Schutz, was told by Schutz, "Maybe you will discover that anonymity and death are the same." This profound thought underlies the entire text, as Natanson explores the causes and effects of anonymity (also called abstraction, typification, alienation, or as Dr. Martin Luther King has called it, "the darkness of nobody-ness").. Natanson reminds us that anonymity is not always a bad thing, but when it is instituted as a system upon unwilling participants, then it becomes problematic.
Also, I would recommend the work of Lewis R. Gordon, who adapts Schutz's and Natanson's theories of anonymity to discuss issues of antiblack racism and Africana thought. Gordon's "Existentia Africana," "Her Majesty's Other Children," and "Fanon and the Crisis of European Man" are suggested.