rainbow seriesAny of several series of technical manuals distinguished by cover colour. The original rainbow series was the NCSC security manuals (see {Orange Book}, {crayola books}); the term has also been commonly applied to the PostScript reference set (see {Red Book}, {Green Book}, {Blue Book}, {White Book}). Which books are meant by ""the" rainbow series" unqualified is thus dependent on one's local technical culture. [{Jargon File}] (1996-12-03)