I didn't get much out of it... other than that DT's favorite book is "All Quiet on the Western Front." Also that he thinks of himself as "a person."
ADDED: Less surprising but probably more significant: His favorite movie is "Citizen Kane." Kelly — presumably because she was doing some lightning-round set of questions — failed to ask the obvious question: Do you identify with Kane? Kane was an unsuccessful politician and a successful journalist, so a conversation between Trump and Kelly about Kane could have had some real content, but Kelly is not the journalist to see and do anything about that potential.