"Even readers who received fastidious toilet training and admonitions against potty humor will let down their guard and find this book both informative and entertaining. (glossary, resources, index, author's notes) (Informational early reader. 7 & up)"
A perfect blend of humor and clarity—in text and in artwork—explains the anatomy of human waste, the mechanics of a flush toilet and the subsequent treatment of waste in septic and sewer systems.
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