Historically black dresses were considered to be the province of widows, women who had been married, who had had sexual encounters but were now unavailable. Black therefore was a very alluring symbol in this instance, suggesting sex and unavailability simultaneously.
After the death of Prince Albert, Queen Victoria's observance of mourning dress set the cultural norm. The exhibition showcased black dresses from the 20's up to the present day, from designers and local fashion students.
Imogen and Jemima are really into fashion design. The top model range of design books are very good, they come with stencils, stickers and patterned paper. There are also tips on the website about how to create different looks.