This is an excellent and original work of philosophy, closely related to the contemporary ideas of Sartre and Merleau-Ponty, but quite unique and not reducible to their work. I find it to be one of the best books (indeed one of the few books) to use to teach existentialism in introductory classes. I recommend skipping the first chapter, because it is self-consciously "literary," (in an obscure way), and contributes nothing essential to the book. Chapter 2 is the core of the book, and it is an incredible and compelling piece of writing that brilliantly discusses the distinctive nature of childhood experience, and then develops a dialectic of "bad faith" that offers a sort of system for understanding personality types--ways, that is, of embracing (imperfectly) our freedom. The third chapter studies politics in a very thoughtful way, (though I find it is often lost on my intro students because they just don't have enough experience of political realities to appreciate the significance of what she is saying). This text is often wrongly belittled by commentators (and, indeed, de Beauvoir herself wrongly said disparaging things about it), but I think it is one of the classic texts of existential phenomenology and deserves to be widely read.