Katie Cook has worked on licensed properties for DC and Marvel Comics on a variety of projects. She also worked with the Jim Henson Company, working on the comics of Fraggle Rock and working as an illustrator and writer on Jim Henson's The Storyteller. She is well known for her Star Wars artwork and contributes to the official starwars.com blog. More recently though, she acted as the writer (along with artist Andy Price) behind issues of the bestselling My Little Pony: Friendship is Magic, a comic based on the popular children's TV show of the same name. Cook returned to the comic series as a writer in the third arc, starting at issue 9. The comic has been considered highly successful as the best selling IDW comic and has been cited as helping to boost the area of comics aimed for children; Cook's contributions placed her on Bleeding Cool's Top 100 Power List of people in the comic book industry for 2013 AND 2014.