Curiously, 'Hot Skies over Yemen, Volume 1' is out since something like two months, and selling quite good. Still, the only 'segment' of customers that discovered it for them so far seem to be model-builders, and then British model-builders ('of course').

...at last, some of them have published the first review of that volume, so far.

BTW, Volume 2 - which is covering the history of air warfare over Yemen from 1994 until 2017 - was meanwhile delivered, and is about to enter production, later this month. This is going to be its cover.