As London’s youth quake movement plays out on the F/W ’17 runways with designers like Simone Rocha, Michael Halpern and more leading the charge at the moment, another sort of youthful explosion is playing out on the streets. Cue the innocent and bookish sartorial influence of school girls, librarians and the ilk, which appears on some of the most endearing and charming wardrobes of London Fashion Week’s goers. Here, we take notes on how to ace the look.