Bernardo Marçolla is an author and illustrator who holds a doctorate and post doctorate in literature, as well as a master’s degree in psychology, and who has more than ten years of experience as a professor of psychology. Since 2012, he has been an analyst in the Human Resources area of the Brazilian Institute of Geography and Statistics, and in 2017, he published the book Psychology and Ecology: Nature, Subjectivity and Its Intersections (in Portuguese). The ideas in that book inspired him to create accessible books for children on big, metaphysical concepts. He loves chocolate and still has not given up on learning to draw a little better. He lives in Belo Horizonte, Brazil, with his wife and their cats.