Not sure of your location but if you are mailing materials like this in the USA it's really cheap. USPS Media Mail. https://about.usps.com/notices/not121/not1

Not sure of your location but if you are mailing materials like this in the USA it's really cheap. USPS Media Mail. https://about.usps.com/notices/not121/not121_tech.htm https://about.usps.com/notices/not121/not121_tech.htm I've used it to buy/sell large tomes like this and it is really cheap ship things this way. It's not the speediest of delivery methods.