An excellent introduction to number systems that is a beautiful wordless picture book as well. . . Over the course of a year (each picture represents a different month and time of day) a little town grows up with viewers witnessing the building of bridges, streets, and railroads. . . . Extraordinary lovely art work.' 'sLJ.Notable Children's Books of 1977 (ALA)1977 Boston Globe—Horn Book Award Honor Book" Best of the Best" Children's Books 1966—1978 (SLJ)Outstanding Children's Books of 1977 (NYT)1988 Choices (Association of Booksellers for Children)Children's Books of 1977 (Library of Congress)