Brilliant and interesting photographs, easily understood diagrams, and a short, informative text are the highlights of this "Patterns in Nature" series, which features titles on day and night, hibernation, phases of the moon, and seasons of the year. This title explains the rotation and changing tilt of the earth with fun photos for each season—for example, a little boy building a snowman next to children splashing at the beach. There are photos to make children giggle and others—like the icicles hanging on evergreens—that simply elicit a calm "ooohhh." We can see drops of morning dew on the sprouts of spring and then it is time for summer again. The last page shows a circle diagram of spring followed by summer, then fall and winter: a pattern. "Seasons keep changing in the same pattern." Each title features a similar pattern diagram on the last page. Children can see the principle and learn the words that explain that principle. There is a very short index, a list of additional books, and reference to the www.facthound.com web site with links to age-appropriate sites for each book. This is an outstanding series of concept books for new and pre-readers; the photographs make the book interesting enough to use with older children who struggle with reading and concepts.