A popular author of science books for young people contends that grass is one of our most vital products. How it is used indirectly to furnish our means with meat and dairy products, to cloth our bodies with woolen garments brings the matter close to experience. Grass is the world's largest crop and its many species provide food for people all over the world. An examination of the various species in the grass family, their botanical characteristics, and the methods of cultivation, processing and distribution (wheat, corn, oats) add the scientific dimensions. This is decidedly technical reading for the classroom primarily.