Source : Webster's Revised Unabridged Dictionary (1913)

Blue book \Blue" book`\
   1. A parliamentary publication, so called from its blue paper
      covers. [Eng.]

   2. The United States official ``Biennial Register.''

Source : WordNet®

blue book
     n 1: a report published by the British government; bound in blue
     2: a register of persons who are socially prominent
     3: a blue-covered booklet used in universities for writing
        examinations

Source : Free On-Line Dictionary of Computing

Blue Book
     
        1.  Informal name for one of the four standard
        references on the page-layout and graphics-control language
        {PostScript}.  The other three official guides are known as
        the {Green Book}, the {Red Book}, and the {White Book}.
     
        ["PostScript Language Tutorial and Cookbook", Adobe Systems,
        Addison-Wesley 1985, (ISBN 0-201-10179-3)].
     
        2.  Informal name for one of the three standard
        references on Smalltalk.  This book also has green and red
        siblings.
     
        ["Smalltalk-80: The Language and its Implementation", David
        Robson, Addison-Wesley 1983, (ISBN 0-201-11371-63)].
     
        3.  Any of the 1988 standards issued by the
        {ITU-T}'s ninth plenary assembly.  These include, among other
        things, the {X.400} {electronic mail} specification and the
        Group 1 through 4 fax standards.
     
        See also {book titles}.
     
        [{Jargon File}]
     
        (1995-10-12)