The Great Follow-up
On Book Trailers
    To be frank, I wouldn't trust book trailers any more than I would trust movie trailers...which is to say, not at all.  A trailer is nothing more than a bit of hype created by advertising executives to sell something. The trailer takes edited bits and puts them together to make a mini-movie showing off all the alleged "best-parts" of the story so that the viewer or reader will feel comfortable parting with a bit of cash to see the whole thing. Frequently, in the case of a modern movie, the result is disappointment. I can only imagine that the same thing can happen with books.
    I am a content afficianado.  I want substance. I love author interviews on C-SPAN book notes which run more than ten minutes, and allow questions and answers from the audience about the material within the book. I have watched some of these recently, including Colum McCann's Transatlantic, and Ken Follett's historical sagas, as well as in-depth interviews on YouTube with Bernard Cornwell [Sharpe series] and Patrick O'Brian [Aubrey and Maturin Sea adventures]. These take more time to watch, but they provide much more information about the books that these authors have taken even more time to write. These reviews provide a very accurate depiction of what stories and facts are between the covers of their books.