The book

The non-fiction book Hello Plankton! by author and illustrator Kristina Heldmann is aimed at young readers aged 10 and up, and their families. With picturesque illustrations and engaging, entertaining text, it invites readers to discover the fascinating world of plankton. Besides introducing individual species of marine zooplankton and phytoplankton, it presents their role in the ocean ecosystem and gives a voice to enthusiastic scientists. Hello Plankton! was nominated for the German Youth Literature Prize in 2025.