The product is a set of three first edition hardcover books from the CANOPUS IN ARGOS series by Doris Lessing, published by Alfred A. Knopf. The books, originally written in English, come with dust jackets and are part of the science fiction genre. These collectible items are original editions, not reprints or facsimiles, and were manufactured in the United States. Fans of literature and fiction, particularly those interested in science fiction, would appreciate adding these rare and unique books to their collection.