A few reasons:
1.) This is a big book (large trim size, 240+ pages) and many will get a hardcover upgrade if we hit that Stretch Goal, so it's expensive to ship no matter what!
2.) The USPS had a price increase this year.
3.) Due to the volume of books going out, Kadi is unable to ship them all herself and had to hire some help, which adds a dollar or two per package.
Kadi is in Canada but we'll be shipping from the USA, which actually DECREASED shipping costs a lot! We've done everything we can to keep the shipping cost reasonable...so we're sorry that we can't avoid it, but we think receiving this big, beautiful book on your doorstep will make it worth it. :)