Teemu Rikkola is a digital textbook creator at Kustannusosakeyhtiö Otava since March 2021, specializing in materials for upper comprehensive school and high school. Prior to this role, Teemu served as an Astronomy Exercise Teacher at the University of Oulu from January 2020 to May 2020, where assistance was provided in physics and astronomy to students. Teemu also gained experience in sales and marketing as a representative for DNA Oyj from April 2015 to August 2019 and for Enia from February 2013 to November 2014, both focusing on promoting products of Finnish teleoperators. Teemu holds a Master's degree in Astronomy and Astrophysics from the University of Oulu, completed between 2014 and 2020.