Complex sentence: C. Stephen Evans (born 1948, Atlanta, Georgia) is an American historian and philosopher, he is one of the United States' leading experts on Søren Kierkegaard, publishing six books on Kierkegaard over 25 years.
Split into simpler sentences: C. Stephen Evans (born 1948, Atlanta, Georgia) is an American philosopher. He is one of the United States' leading experts on Søren Kierkegaard, having published six books on Kierkegaard over 25 years.