Conversation so far:
When did Roberto Mangabeira Unger's academic career begin?
The beginning of Roberto Mangabeira Unger's academic career began with the books Knowledge and Politics and Law in Modern Society, published in 1975 and 1976 respectively.
What year did Roberto Mangabeira Unger's academic career beginnings happen?

Question: Did the books help his career?
Self-contained rewrite: Did the books, Knowledge and Politics and Law in Modern Society help Roberto Mangabeira Unger's career?