Gr 3-5-These simply written titles introduce different habitats and the flora and fauna that form the food chains and food webs within them. Kalman leads readers from general concepts, such as "What are wetlands?," through a few representative types of animals and plants and the various types of producers and consumers within the ecosystem. The books end with a visual representation of the energy of the individual food web, using photographs and arrows to indicate the interconnections. The environmental dangers to the specific habitats are addressed as well as suggested actions to protect them. Attractively laid out, small, beautiful photographic inserts with informative captions extend the main texts. Though the books focus on few representative species and provide only key details relevant to the topic, children can still learn a surprising amount, such as how underwater plants absorb carbon dioxide (Wetland), or how acacia trees prevent overgrazing (Savanna). All three are excellent extensions to textbooks covering food chains, or they could be enjoyed on their own.-Judith V. Lechner, Auburn University, AL Copyright 2007 Reed Business Information.