Published in 1988, 'Sky Warriors - Aviation in the California Army and Air National Guard' is an aviation album featuring quality colour images of the many varied types operated by the military units mentioned in the title at the time of print, so quite an exciting variety, particularly as it is as far back as 1988. Little things stand out, like a pic of a group of heli pilots undergoing target practice, all wearing old style 'brain bucket' helmets and armed with S&W .38 revolvers.