It’s beginning to look a lot like…autumn? Today we are talking about one of the cutest and unique fall details I have seen, admired, and worn lately. I am talking about what I have dubbed the “Peak-a-Boo” sweater. Why have I given this sweater such a funny nickname? No, it is not because of the impending Halloween holiday. Let me explain. The front of this sweater looks average, but when you see the back there is a curtain effect. Cute, right? Well, it doesn’t stop there! I am not wear multiple layers here, the underneath shirt is sewn together with the outer blue fabric! This extra layer acts as a…