- blue book - a report published by the British government; bound in blue
--1 is a kind of report, study, written report
- blue book - a register of persons who are socially prominent
--2 is a kind of directory
- blue book - a blue-covered booklet used in universities for writing examinations
--3 is a kind of booklet, brochure, folder, leaflet, pamphlet
- blue book - a register of persons who are socially prominent