Umberto Eco is a/an Author
[Human]: Do you know Umberto Eco? [Assistant]: Yes, Umberto Eco is an author.  Do you like his work? [Human]: I really like Umberto Eco. Any good books recommendation? [Assistant]: Sure, Umberto Eco wrote The Name of the Rose, Foucault's Pendulum, and History of Beauty.  Have you read any of those? [Human]: Not yet.Can you give me recommendation of other author? 
No problem.  Have you read anything by Emile Zola or Zoe Heller?