Who Counts the Penguins? Working in Antarctica by Mary Meinking is an informational picture book for grades 2 to 4. This book provides an overview of different jobs in Antarctica including highlighting what different types of scientists do such as glaciologists studying climate history using ice core samples and astronomers studying the stars. This book gives students a general overview of what jobs there are in Antarctica as well as what different types of scientists research. This book also provides a good explanation of how planes and ships deliver people and goods to Antarctica.