Patrick Hely 
Claro y oscuro en la clase de arte / Light and Dark in Art Class [PDF ebook] 

What better place to learn about light and dark than in art class? Children will love learning about opposites in this charming book set in a familiar location. Readers follow along as a relatable narrator and his classmates paint pictures and learn about contrasting colors. Bright illustrations and accessible text reinforce the understanding of this important aspect of early elementary curricula. Beginning readers and young listeners alike will enjoy and learn from this entertaining book.