This is the 5 book series: Canopus in Argos: Archives. The individual volumes are: Book 1: Shikasta Book 2: The Marriages Between Zones Three, Four and Five Book 3: The Sirian Experiments Book 4: The Making of the Representative for Planet 8 Book 5: The Sentimental Agents Also see: British Editions O T H E R . E D I T I O N S American paperback reprint all in one volume Vintage Books Published: January 1, 1992 ISBN: 0679741844