Caterpillars and Butterflies is aligned to the Common Core State Standards for English/Language Arts, addressing Literacy.RI.2.4 and Literacy.L.2.4b. This book explains how caterpillars change into butterflies with full-page color photographs paired with narrative nonfiction text. This book should be paired with "Life Cycle of a Butterfly" (9781477722374) from the Rosen Common Core Readers Program to provide the alternative point of view on the same topic.