A wonderful picture book for preschoolers who love cars and trucks. The text is very English and needs some adult translation for North American children. (refuse lorry, caravan, petrol tanker, estate car). The pictures follow a long line of cars, trucks, bicycles and so on who are waiting in a traffic jam, until at the end we discover the reason for the delay. Some funny details and continuing sub-stories add interest for repeat readings. MANY repeat readings! ( )