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 landfills are filling up with cans, bottles, and paper, much of which could be recycled, thus saving trees, water, and energy. Jose and Jenny, along with their mothers, demonstrate ways to recycle, such as collecting plastic, paper, and metal items and putting them into bins. Michelle and her father look for the recycling arrows on products when they shop. Final advice to readers: "When you recycle, you help save Earth's resources. Let's recycle to take care of the Earth!" 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.