What is that garbage doing next to the garden? It's not garbage. It's compost! Amazing things happen inside a compost bin. In go banana peels, grass clippings, and even an old jack-o'-lantern. Out comes compost. The compost goes into the garden to make the soil rich for new plants. Compost is good for the earth. Composting also helps us make less garbage. In this book, you can watch as one family makes compost for their garden and also learn how to start your very own compost bin!