Your summer reading list should contain a dozen of the best books about the holiday season, relaxation, the summer, warmth, sunlight, wine, evening and song.
Actually this is rubbish. Your summer reading list is whatever you want to read. However, it should not be measured in numbers (of books). This is for the amateur. Real lists are measured in years. It should never be an achievable list (also for the amateurs). It should have a life of its own, way beyond your control and way ahead of you in knowing what you need.
A reading list is a priceless document. It should remain intact, unconquered, and be passed on to your children.