Complex sentence: Kerry Jeff Sulkowicz (born 1958) is an American psychiatrist and the founder and managing principal of Boswell Group LLC, a consulting firm that advises business executives on the psychology of leadership and corporate management.
Split into simpler sentences: Kerry Jeff Sulkowicz (born 1958) is an American psychiatrist. He is the founder and managing principal of Boswell Group LLC, which advises business executives on the psychology of leadership and corporate management.