Everything you need to understand or teach At the Existentialist Café by Sarah Bakewell.
Somewhere between biography, memoir, novel, and textbook, Bakewell’s book serves as a partial but accurate guide to existentialism and phenomenology. Her writing style is informative and analytical, while also sometimes shifting into the first-person to detail Bakewell's own experience with a philosopher or a text. By writing about the lives of existentialists in France and Germany, she communicates messages about literature, death, technology, philosophy, and the meaning of life itself.