There are actually a ton of books out there on Route 66. Take a look on
Amazon to see for yourself, the selection can be overwhelming. Add to that independently published books, kindle books, and books sold through Route 66 associations nationwide and the selection becomes a positive avalanche of book options.
Being an experienced Route 66 traveler, and knowledgable about Route 66 I have an incredible collection of books on the subject. This has also given me the ability to sort out the truly good books, from the bad and/or clone books the subject has produced over the years.
So keep watching for my suggestions coming to you soon.