Krohn wrote Defining Conservatism, which was self-published in 2008, when he was 13 years old, because he felt the term conservatism was often misused. The book was in part a response to criticism that John McCain, the 2008 Republican presidential candidate, received regarding his conservative credentials. The book outlines four fundamental principles of conservative thought: support for the United States Constitution, opposition to abortion, less government, and more personal responsibility. Krohn went on to apply the principles to current events and define whether specifically cited actions violated those principles. The book was dedicated to Ronald Reagan, William F. Buckley, Jr. and Barry Goldwater, whom Krohn describes as his political heroes, along with South Carolina Senator Jim DeMint. Krohn paid to have the book published from his own savings. He described it as a "first effort" and immediately planned to write a second one, which he said would focus in part on Alexander Hamilton and James Monroe.
