The Cyber Knights series by Harold Coyle consists of 2 books, starting in 2015. The series begins with Cyber Knights 1.0.
The Harold Coyle's Strategic Solutions, Inc. series by Harold Coyle consists of 3 books, published between 2007 and 2008. The series begins with Pandora's Legion.
The Nathan Dixon series by Harold Coyle consists of 6 books, published between 2000 and 2009. The series begins with God's Children.
The Scott Dixon series by Harold Coyle consists of 5 books, published between 1988 and 1994. The series begins with Sword Point.
The U.S. Civil War series by Harold Coyle consists of 2 books, published between 1995 and 2017. The series begins with Look Away.