Due to the structure of Squarespace's shipping options, we have added the price of shipping within the US into the base cost of each item. Unfortunately, this makes items look far more expensive than they actually are, but it was the only way to avoid charging the same amount for shipping a Section Zero hardcover book as for shipping a single sheet of Temporary Tattoos.
International shipping is a whole 'nother kettle of fish. We hope to have it in place very soon.
When Squarespace offers a different-shipping-price-per-item option, we will quickly implement it, making everyone's life easier.
Thank you for your understanding and patience.