Sharp Endgames was published by Quality Chess (Europe) on November 2nd, 2017. Getting the book in the US is slightly harder due to the delivery costs, but here is a few suggestions if you do not want to wait until January 7th, 2018 (Amazon.com):
A third option is to show up for my book presentation on December 5th 2017 at the Marshall Chess Club! The books will be signed and sold with a slight discount. More information on this lecture will follow soon.