Why do we have earwax? What’s the purpose of sweat? Why do we get those little crusty things in the corners of our eyes while we sleep? This series about gross body functions answers these questions and more by covering basic concepts in anatomy, physiology, and body systems. Burping, flatulence, earwax, nasal mucus, eye mucus, and sweat are covered in these books that will nourish curious minds. Large, full-color photographs show close ups of the concepts covered in the text, with short, simple sentences complemented by basic diagrams and captions alternating on each page. Readers can pore over close ups of what earwax looks like inside an ear, a microscopic view of an eye booger, or a diagram of what a hair follicle looks like beneath the skin’s surface. Each book includes a summary of concepts covered in each book, as well as a glossary and index, to ensure comprehension. VERDICT This well-translated ­series, which is also available in English, would make a great addition to school libraries or elementary science classroom libraries.