The third edition will be published via KDP, which is Amazon. While we could debate the merits of using Amazon, I can just offer that it offers ease of use on my part, and ease of purchase on yours - local availability AND shipping cost in US, Canada, UK, Germany, France, Spain, Italy and Japan. The books are printed "on demand" like all previous editions. The 3rd edition will be priced at USD $24.95, and an equivalent amount in the other regions.
The book is finished, now to figure out review copies, press, publicity, etc. Expected in late March.