Please note that the 33% buy-back offer only relates to books purchased with a yellow sticker on. You would also have been advised to keep your receipt at the time of purchase.
Our best suggestion is to ask you to contact the Second Hand Books Department at your nearest Blackwell Shop.
A list of our shops and contact numbers can be located on the Shops page of our website or by clicking on the following link: Blackwell's shop list
Please provide a list of the books which you have to sell and they will be able to advise you if they would like to buy the books.