Thomas P. Koziara holds a B.A. with a major in history and minor in political science from the University of Northern Colorado. He bears a five-year M.A. in European and Polish history from Jagiellonian University. He has a M.S. in secondary education from DePaul University. He maintains PolishHistory.us.

He wrote 1,447 books:

The Beginning of England's Burning and Rising Sun: The Henrician Reformation (1529-1547) through the Perspective of the English Trinity of Henry VIII, Thomas Cranmer, and Thomas Cromwell (2003)
Deum Tangens: Źródła Dochodu Polskiej Szlachty Podczas Nowożytności (2013)
The Complete Polish Grammar Workbook (2013)
How to Become an A+ Student (2014)
The Theoretical Foundations of History (2015)
History is a Weapon (2017)
The Opposite of History (2018)
Historia Nostra: The Complete History of Poland (2018)
Biological Capital: The Biological Influence On the Development of Giftedness (2021)
1,426 foreign vocabulary books.