And now for something completely different

The Gas We Pass: The Story of Farts is a children's book written by Shinta Cho. The book tells children about flatulence (also known as farting), and that it is completely natural to do so. Everyone Poops is a prequel.
The book also discusses other animals and their habits of flatulence. The book continues on to tell its readers about why farts smell bad, and what animals only seem to fart (skunks and stink bugs).

In the United States, it was published by Kane/Miller Book Publishers in 1994.
The New York Times reported in 1997 that The Gas We Pass had 380,000 copies in print and had made appearances on Publishers Weekly's children's books best-seller list.] According to the Times, the publishers estimated that half the sales of The Gas We Pass and Everyone Poops were to adults for other adults. Publishers Weekly listed The Gas We Pass and other titles in the My Body Science series in a survey of children's books which continue to sell well year after year, noting that the series as a whole had sold over 2 million copies by 2003. In 2007, when Kane/Miller first had an exhibit at Toy Fair, Publishers Weekly noted that the publisher "displayed its spring titles as well as its bestsellers Everyone Poops and The Gas We Pass."
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Everyone Poops is essentially plotless. The first sixteen pages contain various prompts regarding defecation in animals such as opposites ("An elephant makes a big poop" and " mouse makes a tiny poop"), comparisons (that various species produce various sizes and shapes of poop) and questions ("What does whale poop look like?").