Via their Instagram page Design.Emergency Alice Rawsthorn and Paola Antonelli have brought designers together to tackle some of the worlds intractable problems. Journalist Amy Odell discusses her biography of the fashion industry's most powerful influencer Anna Wintour. New Zealanders have kicked off a citizen historian fad thanks to a new book from Dr Christine Whybrew of Heritage NZ called How to Research Your House. It helps you discover the genealogy of your home and uncover secrets of its past. Toilet, loo, powder room, the toot; no matter what you call it you use it everyday. In this week's Iconic Designs Colin Bisset casts his eye over the design evolution of the public toilet.