Kindergarten-Grade 3-Evolution is a ticklish topic. It is controversial to some for religious reasons; for others, it is a challenging concept to present to a young audience without losing scientific veracity. For one thing, young children have little concept of time-a million years might be the span between birthdays. For another, the idea of slow, evolutionary change still seems somehow equal to a magician's trick. So, accomplishing a reasonable explanation of a scientific concept and its progress through millennia is worthy of note. Peters's simple text uses the "we/us" format to place Homo sapiens in the "family" of life at its very beginnings. "All of us," she states in the first sentence of the book, "are part of an old, old family," going back to Earth's beginnings. "We've changed a lot since then.

" Through a simple progression, amply bolstered by Stringer's striking, large acrylics, she traces "our" family tree from unicellular organisms through amphibians, therapsids, and early mammals to early primates, hominids, and our distinct "humanness" today. Enriched by two pages of additional data and a colorful time line, the whole is rounded out by carefully written author and illustrator notes. Simpler than Stephen Webster's The Kingfisher Book of Evolution (2000) and Melvin Berger's How Life Began (Doubleday, 1990; o.p.), and perhaps easier than Joanna Cole's venerable Evolution (Crowell, 1987; o.p.), this book is a wonderful companion to Steve Jenkins's equally attractive Life on Earth (Houghton, 2002).Patricia Manning, formerly at Eastchester Public Library, NY.