Asymmetrical cuts gained popularity in the 1960s when the trailblazing Vidal Sassoon created geometric hairstyles that were more architectural and graphic than anything that had gone before. Inspired by his interest in Bauhaus architecture and modernity, Sassoon created iconic angular looks that were often purposefully uneven to better work with a client’s face shape and structure. Amongst his most mathematically ingenious styles were the the five-point cut (created on a young Grace Coddington) and the Nancy Kwan bob – created in 1963 for the actress after Sassoon cut off four feet of her hair. It became the first haircut to receive full page coverage in international editions of Vogue and launched a craze for styles that were purposefully asymmetric – and all the more interesting for it.