13 Dec: We are now OFFLINE until 2 Jan 2017 (we will be in Asia attending conferences and conventions). Our eBook store will remain open: http://gp-ebook.ecrater.com HAVE A WONDERFUL HOLIDAYS AND HAPPY NEW YEAR!!
NEW: ITW15 is here! ITW vol. 2 (English) is also back in stock.
CREDIT CARD option is now available with Paypal on check out. Bypass Paypal and continue checking out to use your CC.
Note: If delivery is considered 'late' to your overseas destination, please make inquiries to us directly or your country's customs. We have no control over delivery time once the items' shipped within 48 hrs of the order (unless specific dates' est. for preorders).