Details and Latest Releases

The historical thriller writer got his history degree from Princeton.

Ian Caldwell, who studied history at Princeton, is best-known for his book The Rule of Four, which he co-authored with his friend and writing partner Dustin Thomason, whom he met in high school. Called "the ultimate puzzle book" by The New York Times, the erudite The Rule of Four is centered around four students attempting to solve a centuries-old mystery embedded in a Renaissance text. It spent 49 weeks on the New York Times bestseller list. Caldwell’s next book The Fifth Gospel was published in 2015.

The Fifth Gospel
Airships & Automata
Das geheime Evangelium: Thriller
Il quinto Vangelo
The Rule of Four
El enigma del cuatro

All Books

1 - 12 of 12 results
Title: The Fifth Gospel, Author: Ian Caldwell
Paperback $14.39 $15.99 Current price is $14.39, Original price is $15.99.
Title: The Rule of Four, Author: Ian Caldwell
Paperback $15.79 $17.00 Current price is $15.79, Original price is $17.00.
Title: El enigma del cuatro, Author: Ian Caldwell
NOOK Book $6.99 $7.99 Current price is $6.99, Original price is $7.99.
Title: Airships & Automata, Author: C.S. Wright
Title: Sulawesi: Island Crossroads of Indonesia, Author: Toby Alice Volkman
Paperback $13.94 $15.95 Current price is $13.94, Original price is $15.95.
Title: Sumatra: Island of Adventure, Author: Ian Caldwell
Title: El Enigma Del Cuatro, Author: Ian Caldwell
Title: The Rule of Four. Ian Caldwell & Dustin Thomason, Author: Ian Caldwell
Title: Sumatra: Island of Adventure, Author: Ian Caldwell
Title: Das geheime Evangelium: Thriller, Author: Ian Caldwell
Title: Sulawesi: The Celebes, Author: Toby A. Volkman
Paperback $15.56 $19.95 Current price is $15.56, Original price is $19.95.
Title: Il quinto Vangelo, Author: Ian Caldwell