Here's another social studies series for the youngest learners—this one, called "Caring for the Earth," intends to introduce early readers to the concepts of conservation and recycling. Each slim, square book starts with a statement of the problem and then offers two short chapters with ideas that kids can use to help solve it. With simple sentences on the right-hand pages and a large-scale color photo on the left, this title explains that energy is power and that people use a lot of it (water power from a dam is pictured and oil as a resource is mentioned). Jenny, Sam, Billy, and Sara demonstrate ways to save energy, such as turning off lights, riding bikes to the store (but not how to bring home the groceries without carriers), and turning down thermostats in winter. Final advice to readers: "Remember to save energy every day. You can save resources by using less energy." While the color photos are cheerily bright and attempt to draw in viewers by using children as models, the brief text makes rather obvious suggestions (some depending on the cooperation or decisions of parents) that many teachers already incorporate in their lessons. Still, building values begins with creating awareness—these small books can be used as introductions to units or as starters for discussion; they could also form a classroom library for kids to read on their own. Included for more advanced readers are a glossary, a short bibliography, a Facthound code for Web sites (very limited), and an index.