(4) K-3 Illustrated by Mark Elliott. The simple story of fictional sled dog Yukon unfolds from her puppyhood through steps of basic training, and, after four years, a race in which Yukon leads. The elements of dogsledding are simplified in the story but elaborated in the author's note. The cuddly pups in the awkwardly rendered pencil and digitally colored art will capture readers' interest.

Reviewer: Paula M. Cairo

(4) YA Building History series. These books do a credible job of exploring the history and impact of these public structures: a maximum-security prison, a large-scale national monument, and a transportation system that drew a country together. The volumes will be useful for reports, but the low-contrast, muddy quality of the photos detracts from the books' overall appeal. The time line in each book is a helpful feature. Bib., ind.

Reviewer: Melinda Greenblatt

(3) 4-6 Endangered Animals and Habitats series. Packed with facts and statistics, these well-researched books provide evenhanded accounts of the issues surrounding four endangered species and one ecosystem. Each book relates information about the animal/habitat, describes human threats, and discusses the future challenges for its survival. Illustrated with dark black-and-white photos, editorial cartoons, diagrams, maps, and reproductions, these volumes also include lists of related organizations. Bib., glos., ind.

Reviewer: The Horn Book, Inc.