Should aid be given to poor countries because it is right to do so? Or should aid be ended because it keeps people from helping themselves and interferes with the economic forces that shape true development? Neither view rests on a convincing general case, as this well-reasoned book shows. Most people may not think it necessary to read nearly 300 pages to learn that "aid can be and frequently is a positive force in development," but they would be well advised to find out why this is a sounder and more meaningful judgment than the simpler statements they hear more often. Mr. Riddell of the Overseas Development Institute in London does a fine job of showing the limits of both factual data and critical arguments before making a few constructive suggestions of his own.