Yesper and Noper are the best of friends even though they are very different. Yesper says YES to everything, and Noper says NO to everything. They have had success both at home and abroad with six books, an animated short on children’s television, four adaptations for the stage, and mobile apps for the first three books.

The rights have been sold to China, Czech Republic, Denmark, Egypt, France, Germany, India (Hindi, Bengali and English), Israel, Italy, North Macedonia, South Korea, Ukraine and Uruguay