World Book, Inc., a subsidiary of Berkshire Hathaway and the Scott Fetzer company, is based out of our Downtown Chicago offic ... e. We’re a leading educational publishing and e-learning company that leverages cutting-edge technology to provide authoritative, trustworthy, and understandable content in the school and library and consumer markets worldwide. Our robust product suite includes highly engaging digital databases, eBooks and streaming content, the legendary print encyclopedia, and award-winning nonfiction print books. read more