Gr 2-4--Succinct and to the point, these titles introduce the system, its location and operation; transition with a "Brain Food" spread with additional facts; present some related health issues; and conclude with "Healthy Body Files" that offer suggestions to keep the system working optimally. Spreads feature a page of text opposite photos, micrographs, and diagrams, whose captions are sometimes inadequate. Illustrated "Word of Mouth" and "How It Sounds" sidebars add facts and pronunciation guides, respectively.[Page 119]. (c) Copyright 2010. Library Journals LLC, a wholly owned subsidiary of Media Source, Inc. No redistribution permitted.