According to Amazon, there's only one copy of The Portable Dad left in Canada, and two in the U.K. So if you're in either one of those places, act fast so you don't have to wait for the next shipment.
Also, if you're in Romania, welcome! Looking at the web traffic stats, www.theportabledad.com seems to be popular in Romania. Not sure why, but who cares? Bun venit!