Batman: Requiem for Robin
This is one of the best Batman collection I have read since the new 52 was launched a couple of years ago. Damian Wayne, Batman/Bruce Wayne's son and the last Robin was killed. These issues explore the loss Batman/Bruce Wayne is feeling and how in his typical way, he reacts to the loss. A powerful series about coping and dealing with loss, especially the loss of one's child.
As a paediatrican, I have stand beside many parents who had lost their child. The intensity and depth of their pain was heart-breaking, even to bystanders. The loss of a child is not only the loss of what was and is,but also of what might have been. Every parent will love to see their child grow up. Death has cruelly cut off that possibility. No parent should have to outlive their children and have to bury them.