A new atlas of imaginary islands conjured up by an international gathering of illustrators, including work by Coralie Bickford-Smith, Bill Bragg, Marion Deuchars, Chris Riddell, Maisie Paradise Shearring, Herve Tullet, Ausra Kiudulaite and more.Islomania is a recognized affliction. But what is it about islands that is so alluring, and why do so many people find these self-contained worlds completely irresistible?