"Books are like movies of the mind and it's better to leave Kinsey where she is"

This quote by Sue Grafton is a tip to readers that books are a kind of escapism. They allow us to check out different worlds and ideas, and to experience stories in our own minds. Grafton is suggesting that it is better to keep the stories and characters in books, instead of trying to bring them to life on the cinema. She is most likely referring to her own character, Kinsey Millhone, and is suggesting that it is better to keep her in the books, instead of attempting to bring her to life in a movie. Grafton is emphasizing the power of books to carry us to various locations and times, and to permit us to experience stories in our own minds. She is advising us that books are a type of entertainment that can be enjoyed without the need for a film adjustment.