Pencils are everywhere. But have you ever wondered how they're made? Mirar dentro de un lápiz gives young learners an introduction to materials science and what goes into making an ordinary object—a pencil! This Spanish text series, Aprendamos (Let's Learn), introduces early readers to beginning science topics. Each book includes a list of words to look for in the text with callouts that match the word to the image on the page where it appears. Questions at the end of each book encourage readers to connect further with the text.