Several things have changed regarding the book sale. Since semester 1 of 2015-2016, you can choose to order your books from a web shop and even let them be delivered at home. You can still choose to pick them up at A-Eskwadraat until one week before the start of the block. You'll pay directly on-line, so you won't have to pay when you pick them up. You'll still have to buy your readers from A-Eskwadraat.
Go to https://aeskwadraat.itdepartment.nl/home and select the desired book list. Check the books for the courses you're going to follow in the next block. At the very bottom, indicate whether you're a member or not. If you're already a member, you'll enjoy a 20% discount on all books. If you're not, you can choose to also purchase a membership for €30 to still enjoy the discount. Then you'll have to log in or register, enter your payment details and shipping address, and pay online. Your books will be shipped as soon as possible to the indicated address.
And that's all! Any questions, comments or complaints can be filed with the book commissioner at firstname.lastname@example.org. Please tell us if we can improve things!