I believe this book is fantastic, especially as a beginning point for understanding what existentialism is. The book has a well written preface that explains that existentialism is not really well defined, but encompasses certain themes. This book does a good job of taking a selection of those who share those themes, and introducing them here. I think it gives one a good representation and idea of existentialism, that can be studied more in depth later, by reading the full text of what is represented here. Very well translated by WK.