Radek Maly is a Czech writer, poet, translator, and university teacher. He has achieved international success through his young adult book Franz Kafka: A Man of His Time and Our Own (2017) and his picture book Our Cat’s Day (2023). His non-fiction books Atlas of Extinct Animals (2021), Atlas of Endangered Animals (2021), and Atlas of Prehistoric Animals (2025) have been translated into several languages, and his poetry collection for children Postman Wind (2011) was entered on the IBBY Honour List. Pavel Dvorsky is a Czech commercial and graphic artist who has illustrated dozens of science and popular science publications. From 1966–1972, he studied at the Academy of Arts, Architecture and Design in Prague, and afterward returned to Brno, where he established the Department of Graphic Design and Illustration at the Secondary School for Art and Design. In reconstructing the prehistoric world, Dvorsky has collaborated with many anthropologists and archeologists. In addition to his commercial and graphic artwork, he has designed stamps for the Czech Post Office since 2004. He was born in Brno in 1946.