There's something about islands: the way they shift and change with the weather, the promise of escape, the pull of the sea. Often remote, almost always idyllic, they lend themselves to metaphor and marvel as well as to escape and indulgence. In these essays, 13 writers capture the magic and mirage of islands. Taking us from the glimmering coast of Cornwall's St Ives to the populated archipelagos off the coast of Ireland, and the warm water and glowing sun of Phuket.