Some reviewers compared Philosopher's Stone to the stories of Roald Dahl, who died in 1990. Many writers since the 1970s had been hailed as his successor, but none had attained anything near his popularity with children and, in a poll conducted shortly after the launch of Philosopher's Stone, seven of the ten most popular children's books were by Dahl, including the one in top place. The only other really popular children's author of the late 1990s was an American, R. L. Stine.