9780345344205 | Reissue edition (Ballantine Books, September 1, 1981), cover price $4.99 | also contains The Routledge Guide to Working in Criminal Justice: Employability Skills and Careers in the Criminal Justice Sector | About this edition: One in a series of books by noted science fiction writer Jack Chalker never published before in the UK.

9780345323347 | Reissue edition (Ballantine Books, June 1, 1982), cover price $4.95 | also contains Lord Edgware Dies: Library Edition

9780812597189 | Box edition (Tom Doherty Assoc Llc, October 1, 1985), cover price $8.85

9780345335029 | Reissue edition (Ballantine Books, March 1, 1986), cover price $4.95 | also contains Children and Youth During the Gilded Age and Progressive Era

9780345325600 | Reissue edition (Ballantine Books, June 1, 1986), cover price $4.99 | also contains New Media and International Development: Representation and Affect in Microfinance | About this edition: In an ancient world ruled by machines, the supreme ruler, the Master System, seeks two human survivors--Hawks, an Amerindian, and a young Chinese girl--who discover the secret for destroying technological control of the world

9780812533200 | Reissue edition (Tor Books, August 1, 1986), cover price $3.95 | About this edition: Cassie and her friends on Anchor Logh face being declared surplus in the annual lottery and sold to stringers who take them offworld through the Flux to an unknown destination

9780345293725 | Reissue edition (Ballantine Books, September 1, 1989), cover price $4.95 | About this edition: The Confederacy's best operator is assigned to take over the mind of an assassin on the planet Medusa and overthrow the dictator, Lord Talant Ypsir

9780743499019 | Reprint edition (Baen Books, April 1, 2005), cover price $7.99 | About this edition: A battle against the Dreels--intelligent viruses that invade and take over human bodies--leaves Well World threatened by its own defenses, hence a search to find Nathan Brazil, the only one capable of rectifying the situation.

9780345341051, titled "Return of Nathan Brazil" | Reissue edition (Ballantine Books, November 1, 1990), cover price $5.99 | About this edition: A battle against the Dreels--intelligent viruses that invade and take over human bodies--leaves Well World threatened by its own defenses, hence a search to find Nathan Brazil, the only one capable of rectifying the situation

9780345394774 | Ballantine Books, January 1, 1999, cover price $10.01

9780345394767 | Ballantine Books, January 1, 1999, cover price $10.01 | also contains Getting to Yes With Yourself: And Other Worthy Opponents