If you weren’t sure whether denim was rising—as a fabric and a color—shop windows and assortments in London are providing strong confirmation of an advancing denim trend. With overtones ranging from Vintage to Preppy, denim is taking center stage in a way it has not in years. Here are a few pictures I took along King’s Road, Oxford Street and Regent Street this week. My favorite was probably at Space NK, where a sign in the window touts their “denim ready lip colour.”