An American science fiction author, he is best known for his Honor Harrington series. He is also known for his War God and Safehold series; his stand-alone novels include Path of the Fury and Old Soldiers.
He started writing when he was in the fifth grade. In his early adulthood years, he worked as a strategy game designer.
His literary works span the genres of alternate history, epic fantasy, military science fiction, and space opera.
He grew up in Cleveland, Ohio. With his wife, Sharon, he had three children.
He admired the work of fellow fantasy author, JRR Tolkien.