Piranesi

Two retailer exclusives are documented and are not the trade first: the Waterstones edition (ISBN 978-1-5266-3100-8) carries the author's signature on a bound-in leaf and an exclusive extra chapter, 'Two Interviews' (two interviews conducted by Dr Ketterley) — added text makes it a distinct issue, not merely a signed copy; and the Barnes & Noble exclusive (ISBN 978-1-6355-7675-7) is bound in black boards with a copper-foil column motif and carries a sticker to the front panel