In this addition to the ecologically focused Orca Footprints series, Tate (Take Shelter) explores the importance of trees, describing them as "barometers of how we are looking after our planet." Over four chapters—organized by the four classical elements of earth, air, fire, and water—Tate touches on the many ways trees are entwined with human development (logging, wood as a fuel source) and the environment at large, including their roles as "carbon sinks," absorbing carbon dioxide from the atmosphere. Color photographs, activity suggestions, trivia bursts, sidebars, and Tate's own arboreal anecdotes create an accessible and involving layout, while supplying a broad take on the global diversity and varying roles of trees. While not an in-depth resource, it's a useful overview that offers many entry points for deeper research, concluding with a list of suggested books and websites. Ages 8–up. (Feb.)

Gr 3–6—Another well-done offering from this ongoing series, which tackles a wide variety of environmental issues. In four chapters ("Earth," "Air," "Water," and "Fire"), Tate explores the role trees play in the world's ecosystem. The introduction, in which the author offers her own personal connection to the topic, may draw in some students. The book features a generous number of beautiful color photographs from all over the world, making it an excellent addition to libraries seeking to enlarge their selection of multicultural offerings. Readers will appreciate the relevant historical facts along with the kid-friendly text, which explains concepts in comprehensible terminology. Key concepts are well defined and appended in a handy glossary. Quick facts and ideas for experiments are interspersed throughout. VERDICT This well-written volume is ideal for budding researchers unfamiliar with environmental issues, and teachers will welcome this attractive, curriculum-based reading options.—Anne Jung-Mathews, Plymouth State University, NH