Welcome to the first official post of summer! Here in the South, the days are now wonderfully long, it's much too hot for coffee, and the humidity gives everyone's hair a life of its own. I love every single minute of it! My bookshelves have been the same for a good while, except for a tweak here and there, and I'm thinking of making some changes. Before I do, I thought I'd show you how they are currently styled and share some of my favorite styling tips and ideas. We have dark built-ins on…