Robert Langdon
Harvard professor of symbology
6 books · 2000 to 2025First appears in Angels and DemonsHarvard symbologist Robert Langdon decodes art, architecture and secret societies against the clock, from the Vatican in Angels and Demons to Paris in The Da Vinci Code and Prague in The Secret of Secrets.
Best estimate, compiled from series guides, publisher descriptions and reviews where available, and from memory otherwise. Book level only, not chapter level. Minor includes cameos and brief references. Each book carries a confidence rating in its tooltip.
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Each series in publication order, with its lead characters. Where the story runs in a different order, switch to Story order. Crossover books are marked and listed under their main series. Use My books to track what you have read.
8 recurring and key characters, with the book each one first appears in.
Harvard professor of symbology
6 books · 2000 to 2025First appears in Angels and DemonsCERN physicist
1 book · 2000First appears in Angels and DemonsFrench police cryptologist
1 book · 2003First appears in The Da Vinci CodeNoetic scientist
2 books · 2009 to 2025First appears in The Lost SymbolDoctor who helps Langdon in Florence
1 book · 2013First appears in InfernoDirector of the Guggenheim Bilbao
1 book · 2017First appears in OriginNSA cryptographer
1 book · 1998First appears in Digital FortressIntelligence analyst sent to the Arctic
1 book · 2001First appears in Deception Point