Knock Knock: books promotions, coupons, offers

Some popular items from Knock Knock are witty and humorous office supplies, books, journals, cards, and gifts. You can browse their catalog of products on their website or check out their bestsellers.

The return policy of Knock Knock states that you can return any item purchased from their website within 30 days of receipt for a full refund, minus the shipping charges. You need to contact their customer service team to request a return authorization number and a prepaid return label. You can find more details on their return policy page.

You can track your order from Knock Knock by logging into your account on their website and clicking on the order number. You will see the tracking information and the estimated delivery date. You can also click on the tracking link in the confirmation email that they send you after you place your order.

Knock Knock does not offer customization services for their products. However, they do have some products that allow you to personalize them with your own messages, such as fill-in-the-blank books, sticky notes, and nifty notes. You can also create your own custom products using their templates and tools on their partner website, Zazzle.