I have been buying books for the salon project for many years now so we have lots of books for your topic.
Sartre was a proponent of the existentialism. Check these Dewey Decimal sections of the library.
EARLY ACTION ITEM: I will special order a book if you really need it. But remember, it can take from 2-14 days for orders to arrive.
The documentary below will play from this page or you may go to the originating page here.
Sartre: The Road to Freedom
"Man is condemned to be free; because once thrown into the world, he is responsible for everything he does."
Ebrary Academic Complete: 80,000 e-book collection
Unlimited multiuser access to electronic books and documents. Log-in with the beginning of your email (before the @ sign) and use the password timecat.