We need different kinds of energy to do just about everything--think, run, drive a car, and turn on a light. Mo, a cute blue monster, doesn't know that, and is off to a cooking and baking class to find out more--and readers are invited to go along! While Mo learns about how the sun warms Earth, photosynthesis, and natural gas, readers begin to understand how energy makes our world go 'round. Questions throughout the text keep readers engaged with what they are reading.