Complex sentence: Pietro Di Donato, born in 1911, was a writer best known for his novel, Christ in Concrete, which was hailed by critics in the United States and abroad as a metaphor for the immigrant experience in America.
Split into simpler sentences: Pietro Di Donato, born in 1911, was a writer best known for his novel, Christ in Concrete. He was hailed by critics in the United States and abroad as a metaphor for the immigrant experience in America.