Complex sentence: Harold Whittlesey "Terry" McGraw III (born 1948) is a American publisher and publishing company executive chairman, president and chief executive officer (CEO) of McGraw-Hill Companies and chairman of the Business Roundtable, an association of CEOs of American companies.
Split into simpler sentences: Harold Whittlesey "Terry" McGraw III (born 1948) is an American publisher and publishing company. He is the executive chairman, president and chief executive officer (CEO) of McGraw-Hill Companies and chairman of the Business Roundtable, an association of CEOs of American companies.