4In Acres of Diamonds Russell H. Conwell shows us how to identify the riches and opportunity that lie all around us. Many people search their entire life for opportunity never realizing that everything they need to succeed is already within their reach if only they recognized it. This edition has an introduction by John Wanamaker; a biography of Conwell by Robert Shackleton; and an additional essay entitled "The Acre of Diamonds" by Robert Collier that you wont find in other editions, making this the definitive edition.