The 'In Action" series fills a special niche for the aviation enthusiast. They represent an affordable, if basic look at an aircraft with good illustrations and a good coverage of development and model designations.This is usually 'held together' with an accompanying narrative of the aircraft in operational use. Not so this one. Reference to its operational use in the 1970s is almost absent. ODS gets a one page montage, belying its 1991 publication date. That was twenty years ago.A fine presentation showing its age.