The Emperor Series:
* Emperor: The Rise of Genghis Khan (2005): The first book in the series, focusing on the early life and rise of Genghis Khan. This was Iggulden's breakout novel and became a bestseller.
* Conqueror: The Rise of Genghis Khan (2006): The second book in the series, detailing Genghis Khan's consolidation of power and expansion across Asia.
* Lords of the Bow: The Rise of Genghis Khan (2007): The third book in the series, continuing the story of Genghis Khan and his successors.
* Bloodline: The Rise of Genghis Khan (2008): The fourth and final book in the series, focusing on the legacy of Genghis Khan.
The "Great Wars" Series:
* The Dangerous Book for Boys (2006): This book, co-written with his brother Hal Iggulden, is a non-fiction book filled with practical advice and historical facts for boys. It became a huge bestseller, and several "Dangerous Books" have been published since.
Other notable works:
* The Dangerous Book for Girls (2007): This book, co-written with his brother Hal Iggulden, is a companion piece to "The Dangerous Book for Boys."
* The Gates of Rome (2009): The first book in the "Gates of Rome" series, focusing on the early years of the Roman Republic.
* The Blood of the Romans (2010): The second book in the "Gates of Rome" series, continuing the story of the Roman Republic.
* The Falcon of the Empire (2012): The third book in the "Gates of Rome" series, detailing the rise of Julius Caesar.
* The Devil's Own (2014): The fourth book in the "Gates of Rome" series, chronicling the assassination of Julius Caesar.
* The Field of Swords (2016): The fifth book in the "Gates of Rome" series, focusing on the rise of Octavian (later Augustus) and the end of the Roman Republic.
* The King's Shadow (2019): The first book in the "King's Shadow" series, focusing on the young Richard III.
* The King's Men (2022): The second book in the "King's Shadow" series, continuing the story of Richard III.
These are just some of Conn Iggulden's most popular books. He has also written several other novels and non-fiction works. He is a prolific author known for his engaging and detailed historical fiction.