Q. What were the main challenges while creating a colouring book for adults?
One of the biggest challenges we faced while creating The Harry Potter Colouring Book was narrowing down the iconic imagery from the films while selecting the content that would make up the colouring book. The Harry Potter world is rich with visuals, so choosing the content for the colouring book was difficult. It was also a challenge to make sure the line work was consistent and we were creating clear, defined shapes for colouring, while making sure that the character and creature likeness was on point.

A film still from Harry Potter and the Deathly Hollows Part 1