(English: “The Structure of My Body with Mama: The Differences Between Boys’ and Girls’ Bodies I Learned by Asking Mom ‘Hey, Hey’” ) Informative Write-Up Title: Mama to Boku no Karada no Shikumi Author/Illustrator: Typically credited to Shuntaro Tanikawa (poet/lyricist) and Yoko Imoto (illustrator), though several similar titles exist under the “Kagaku no Tom” (Science Friend) or “Gakken” educational series.
Preschool to early elementary school children (ages 4–8). Mama to Boku no Karada no Shikumi Okaa-san ni C...
Based on this phrasing, you are most likely referring to the well-known Japanese educational children’s book: (English: “The Structure of My Body with Mama: