Impressively illustrated with masterpieces of Western European art, Saints and Angels by Claire Llewellyn offers a lucid, appealing introduction to the concepts of Christian saints and angels, and to the major exemplars of each type. The organization is unusually clear, grouping together the Holy Family, the early followers of Christ, martyrs, great thinkers and evangelists, and saints who promoted peace and healing (even a spread on American saints). Faithful color reproductions of works by Raphael, Fra Angelico, Giotto and the like, shown on full pages and in small insets within the text, imbue the book with a formal mood, enhanced by elegant border motifs and occasional art in the margins to illustrate saints' symbols. (Kingfisher, $14.95 64p ages 9-14 ISBN 0-7534-5588-9; Oct