He manages to introduce a completely different terrible flaw into every book . And it does n't matter . It 's something about the voice , the way he sees and renders people that strikes utterly true . And something about the preoccupation with protagonists who are really , no kidding , genuine selfish fuckups . And have that brought to their attention as a way in which to grow . ( Although I will say so far that my bar none favourite Stewart character is Shielder 's Mark from Nobody 's Son .

What is a characteristic of the described protagonists of the author ?
They 're screwups