A very popular series by A.J. Pine are the contemporary new adult Kingston Ale House books, featuring friends to lovers tropes. Another popular series are the contemporary new adult If Only... novels, tagged as young adult, college, insta-love and possessive hero. The best liked books by A.J. Pine are Saved by the Cowboy, Hard Loving Cowboy: Includes a bonus novella, What If and Six Month Rule. Her latest book is A Little Country Christmas which was published in 2020.