Adjutant Vehicle Books

I stopped in at my local game store last night, and looked through their
distributor catalogs.  A group of vehicle books, grouped by types like "Tanks",
"Hovercraft" and so forth is supposedly available from someone(?) called
Adjutant(?).  Before I request the shop to order these for me, has anyone seen
them?

(All you need is more vehicles, I hear you saying...)

Rob Dean