The shipping cost is dependent upon the shipping method chosen when ordering a print.
UPS Ground and tax are included in the base cost of every product. If you're shipping within the contiguous United States, UPS Ground is always free. Because of this, international shipping is free for some of the smaller products or available at a cheaper price.
Shipping costs are applied per item. If you order a 12x16 Canvas Poster, it costs $0.94 to ship UPS 2nd Day Air. If you order two of these, it costs $1.88 to ship UPS 2nd Day Air.
For detailed information about the breakdown of shipping costs per product by location, please view the attached PDF.