Charles James Box Jr., known as C.J. Box, is an acclaimed American author born on November 9, 1958.

He is the author of more than thirty novels, including the popular Joe Pickett series, several standalone novels, and a collection of short stories. His works have been translated into 27 languages, with over ten million copies sold in the U.S. alone.

The first novel in his Joe Pickett series, Open Season, was recognized as one of The New York Times' "Notable Books" of 2001. Multiple novels, including Open Season, Blue Heaven, Nowhere to Run, and The Highway, have been optioned for film and television. The latter was adapted into the television drama series Big Sky, which premiered in November 2020.

In March 2016, Off the Grid debuted at #1 on The New York Times Best Seller list. In 2021, Paramount Television Studios began production of a TV adaptation of Box's Joe Pickett novels, featuring Michael Dorman as Joe Pickett. This series was renewed for a second season in February 2022.

C.J. Box is a Wyoming native and has worked in various outdoor and journalism roles. He is an avid outdoorsman who has hunted, fished, and explored extensively throughout Wyoming and the Mountain West. He lives on a ranch in Wyoming with his wife Laurie, and they have three daughters and four grandchildren.