Odd

The book is nominally to be released on 18-June, though word is that Amazon started shipping already.

But "SuperBookDeals" claims to have it available already, second hand. I assume they won't ship until they actually get a second-hand copy, and thus delivery might take a while, but that's a curious business model. "81% positive over the past 12 months"

Shattered Sword was Parshall's book on Midway.