People are different. Families are different. What we feel is different. How we look is different. Let's explore how all people are both alike and different The Mi Mundo (My World) series is perfect for young learners in prekindergarten through grade 2. These 16-page hardcover books give readers an accessible introduction to nonfiction reading. Color photographs and fun, factual examples will grab the attention of young readers and help strengthen reading comprehension skills.