Some comments on this picture book "Tennis and Pencil" - The Picture book series related to Discrimination

This is the first picture book in the series about "Discrimination".
The word "discrimination" does not yet come out in this picture book. Please regard this picture book as an introduction. I only drew a simple fact about the human behavior, but such a natural fact is easily missed out in the illusion.

   Tennis and Pencil in PDF
Tennis and Pencil in Japanese (テニスと鉛筆)

Picture books about discrimination

# This picture book is one of Discrimination series.
Tennis and Pencil
a pencil
Jun Togo