that anyone studying sartre, ever, absolutely must read her book (sartre: romantic rationalist) on him, not only for it being one of the earliest analytical works on him (writen like.. ten years after he wrote age of reason iirc, analysis of which forms a decent chunk of her approach), but also because it offers a unique perspective, and because it does a brilliant job of explaining essentialism.

but also metaphysics as a guide to morality is pretty good as a philosophy text on its own