• 8 Memorial Library
• 2 College Library

• 16 Books
• 1 Sound Recordings

• 1 Compact Discs

• 8 Cryptographers
• 7 Election
• 7 Langdon, Robert (Fictitious character)
• 5 Americans
• 5 Conspiracies
• 5 Meteors
• 5 Presidents
• 5 Scientists
• 3 Dante Alighieri, 1265-1321
• 3 Freemasonry
• 3 Inferno
• 3 Secret societies
• 3 Vendetta
• 2 Adventure stories
• 2 Anti-Catholicism
• 2 Computer security
• 2 Crimes against
• 2 Illuminati
• 2 Intelligence officers
• 2 Papacy
• 2 Physicists
• 2 Popes
• 2 Religious educators
• 2 Signs and symbols
• 2 United States. National Security Agency

• 1 Michael, Paul
• 1 Random House Audio Publishing

• 17 English

• 5 Arctic regions
• 3 Florence (Italy)
• 3 Vatican City
• 3 Washington (D.C.)
• 1 Spain

• 17 Fiction
• 5 Political fiction
• 4 Adventure fiction
• 4 Thrillers (Fiction)
• 3 Adventure stories
• 3 Code and cipher stories
• 2 Action and adventure fiction
• 2 Detective and mystery fiction
• 2 Fictional Work
• 2 Mystery fiction
• 2 Novels
• 1 Adventure stories, American
• 1 Audiobooks
• 1 Cryptologic fiction
• 1 Suspense fiction, American
• 1 novels

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