Original sentence: A leading advocate of the importance for contemporary international relation of a concept of Anglosphere is James C.His book The Anglosphere Challenge: Why the English-Speaking Nations Will Lead the Way in the Twenty-First Century (ISBN 0-7425-3332-8), published in 2004, is an extended exposition of his version of the concept
Edited sentence: His book The Anglosphere Challenge: Why the English-Speaking Nations Will Lead the Way in the Twenty-First Century (ISBN 0-7425-3332-8), published in 2004, is the key exposition of his version of the concept.The leading advocate of the idea of an Anglosphere is James C