This high-interest read takes kids on a fascinating expedition into the worlds of bacteria, viruses, and fungi. These life forms may be small, but without these microscopic superheroes, life on Earth would not exist! Readers will meet some weird and wonderful microbial species, they will investigate the human microbial biome, they will learn how microbes are essential to ecosystems everywhere, and they will discover how microbes are helping our planet from “eating” unwanted plastic waste to fighting climate change. Stunning 3D realistic artwork and scanning electron microscope images support the science-packed text that includes lots of laughs and some cool superhero references.