Subtitled ""Early Westward Expansion of the United States,"" this first volume in the Young Readers' History of the West series describes the exploration of this country in the early 1840s from the Mississippi River to the Pacific Ocean. What distinguishes this fine treatment of an oft-told subject (e.g., The West by Dayton Duncan, p. 1151) are the many original sources set forth for readers: diaries, letters, newspaper articles, and old photographs of the many individuals who made the challenging journey west. There are letters between Meriwether Lewis and William Clark in 1803 planning their expedition, as well as photos of one of Clark's many elkskin-bound journals. Surviving letters from many of the women who accompanied their husbands on the trip describe their vigorous daily life. Herb (with Norman Bolotin, For Home and Country, 1995) makes the frontier stories come to life with this compilation of letters and diaries from the early pioneers. Her work is certain to be a hit with readers.