BIG TRACTORS with Casey & Friends by Holly Dufek, illustrated by Paul E. Nunn Octane Press, 2015 ISBN: 9781937747534 Picture Book Nonfiction Ages 4 and up Source: publisher for review along with a toy tractor that matches the one in the book. All opinions expressed are solely my own. ABOUT THE BOOK Big Tractors teaches kids about a tractor's role on the farm, explaining why a farm needs these powerful machines. Animated characters and real illustrations show the machines at work, and also showcase the features of the tractors. Join Big Red the Magnum tractor, Sammy the Steiger, and the rest of their farm equipment friends work with their friends for the farmer, Casey, to complete the hard tasks on the farm. With a detailed sidebar walking you through the science of tractor systems and functions as well as an easy-to-use glossary, children ages 4-8 will walk away with a better knowledge about how farms need big, powerful tractors to get the year'