Now hiring new farmhands! Aggie, your farmer llama friend, is here to teach you everything you need to know to get the job done at Happy Valley Farm. Farmers feed the world. But with 7 billion people to feed, how do they get the job done? Let Aggie be your guide as you learn the basics (the history of hay) right through to advanced lessons (just stay out of the way of the self-driving tractors . . .), and don't forget to get your llama-diploma! Cute illustrations and photographs help readers learn about different machinery and the history of farming.