Before he leaves for his first day of school, Chepito runs outside to play. He comes across all kinds of people in his neighborhood who are reading. "Why, why, why?" he sings, and they each have a different answer for him, whether it's a man reading a newspaper, a young girl enjoying a comic, a couple of tourists consulting a guidebook or an archeologist studying hieroglyphics. Later that day, Chepito discovers the fun of reading for himself, and...