Oldrich Ruzicka is an acclaimed Czech children's book author whose works have been translated into many languages all over the world. After graduating from the Faculty of Education, he spent several years teaching before transitioning to publishing. He worked as chief editor and publisher of a major Czech publishing before founding his own. Ruzicka currently resides in Brno, Czech Republic.

Tomas Tuma is a Czech freelance illustrator, photographer, and programmer. He has authored many educational adventure books for children, where he popularizes modern technologies. He studied English and art education and enjoys walking in the woods. He currently resides in the Czech Republic.