Complex sentence: The Art of the Deal is a 1987 book credited to businessman Donald Trump and journalist Tony Schwartz, however the book's publisher, Howard Kaminsky, noted that Trump did not write any portion of the book.
Split into simpler sentences: The Art of the Deal is a 1987 book credited to businessman Donald Trump and journalist Tony Schwartz. The book's publisher Howard Kaminsky said Trump did not write any portion of the book.