Describe the fat boy. What kind of person does Golding characterize him as?

Although pudgy, awkward, and averse to physical labor because he suffers from asthma, Piggy--who dislikes his nickname--is the intellectual on the island. Though he is an outsider among the other boys, Piggy is eventually accepted by them, albeit grudgingly, when they discover that his glasses can be used to ignite fires. Piggy's intellectual talent endears him to Ralph in particular, who comes to admire and respect him for his clear focus on securing their rescue from the island. Piggy is dedicated to the ideal of civilization and consistently reprimands the other boys for behaving as savages. His continual clashes with the group culminate when Roger murders Piggy by dropping a rock on him, an act that signals the triumph of brute instinct over civilized order. Intellectual, sensitive, and conscientious, Piggy represents culture within the democratic system embodied by Ralph. Piggy's nickname symbolically connects him to the pigs on the island, who quickly become the targets of Jack's and his hunters' bloodlust--an association that foreshadows his murder.