What Is A River - A Just Ask Book Author:Chris Arvetis, Carole Palmer Illustrated by Bob Beckett — "What is a River?" asks Christopher. — "Let's take a trip, and I'll tell you," — says Turtle. Down the river — Christopher and Turtle cruise, — learning lots of new things — as they go. — The JUST ASK series explains the world to your — child. In simple words and colorful pictures, — these Weekly Reader books answer the ques... more »tions