Did you know a blue whale's heart is as big as a small car? Or that it would take 152 years to drive to the sun? Engage readers in early comparison concepts with this visual series. Compelling comparisons of size, speed, distance, depth, height, and strength are sure to entertain readers. Simple text and vivid photograph comparisons aid in readability and visual literacy skills. Additional features include a fast facts section, a phonetic glossary, an index, sources for further research, and a note for parents and teachers. This series is perfect for introducing STEM to beginning readers.