Hellblazer 1-9
I would consider this an essential collection for pretty much anyone serious about comics or graphic novels. Unless you really can't deal with horror, perversity, and gore. Let's face it- getting the original 1-9 of Hellblazer would be ****ing expensive. You won't find any extra features other than a short foreword and maybe afterword. But as one of the best, smartest, most thought provoking comics ever made, I believe this volume speaks for itself.