Blue book 

Blue book is a term used in various fields. It often refers to an almanac or other compilation of statistics and information. The Tennessee Blue Book traces the term to the large blue velvet-covered books used for record-keeping by the Parliament of the United Kingdom beginning in the 15th century.[1]

Examples of the use of this term include:

U.K. politics and government
U.S. politics and military
Law
Literature and media
Computing and technology
Automotive and Aviation
Education
Jewelry
Biology

References

  1. ^ Preface, Tennessee Blue Book, 2007-2008 edition, page vii
  2. ^ At the House of Lords, the Armenian Genocide is Back on the Table, The Gomidas Institute website