In 2005 Wiehl released her first book, Winning Every Time: How to Use the Skills of a Lawyer in the Trials of Your Life. Two years later she released The 51% Minority: How Women Still Are Not Equal and What You Can Do About It which was awarded the 2008 award for Books for a Better Life in the motivational category. Since then, Wiehl has continued to write best-selling books of fiction and non-fiction including, in 2020, the second in a trilogy called The Hunting Series — Hunting the Unabomber: The FBI, Ted Kaczynski, and the Capture of America's Most Notorious Domestic Terrorist.