There’s a world of tiny creatures that exists right before our eyes—if only we could see them. From fur-dwelling fleas and biting bedbugs to head lice and fruit flies, humans are surrounded by little critters that invade our homes, food, and even our bodies! The animals featured in this series—many of them invisible to the naked eye—are captured in graphic detail through photographs produced by powerful microscopes. Packed with eye-popping photos of the tiny creatures, Up Close and Gross: Microscopic Creatures is guaranteed to get young readers squirming to find out more about the unseen world around them. A bonus section uses clear, step-by-step text and images to show how scientists and photographers used microscopes to create the photos.