Self-confessed chair addict Alan Yentob encounters a vast range of his objects of desire in this whimsical journey through the changing styles of the modern chair - a furniture item intimately and inextricably intertwined with the physicality of our everyday lives, whose look has been transformed over the centuries by designers such as Le Corbusier and Terence Conran , from hand-crafted descendants of royal thrones to wipe-clean plastic garden chairs.