Channing Tatum is known for his work both on-screen as an actor and behind-the-scenes as a producer and director. In 2021, he added #1 New York Times-bestselling Author to his body of work when his first children's book, The One and Only Sparkella, debuted at the top spot. In 2014, Tatum founded his production company Free Association with partners Peter Kiernan and Reid Carolin. He and Carolin produced and co-directed Dog, in which Tatum also starred. Tatum's feature credits include the Magic Mike and Jump Street franchises; Matthew Vaughn's Kingsman: The Golden Circle; the critically-acclaimed drama Foxcatcher; the Coen Brothers' Hail, Caesar!, Quentin Tarantino's The Hateful Eight; Dear John; and The Vow. However, his favorite role to date is being father to his daughter Everly, who loves sparkly, rainbow-y things. He currently resides in Los Angeles.

Kim Barnes lives on the Isle of Wight with her partner and two children, Leo and Cameo, who greatly inspire her work. She graduated from Lincoln University, England, and has drawn ever since she was a young child. She is the illustrator of the Sparkella series written by Channing Tatum (The One and Only Sparkella and The One and Only Sparkella Makes a Plan).