Collaboration with Derryl Murphy, with an introduction by Charles de Lint. Published in hardcover by PS Publishing, November 2009.

• Signed, numbered, jacketed hardcover edition. Limited to 100 copies.
• Unjacketed hardcover edition.
• Reprinted in ebook format by Sinister Regard Publishers, 30 July 2019.

Chapbook originally published by Spilt Milk Press with an introduction by Cory Doctorow and illustrations by Mattias Adolfsson, Summer 2007. Reprinted in ebook format by Sinister Regard Publishers, 3 September 2019.

• "From Our Point of View We Had Moved to the Left" (F&SF, February 1993)
• "Kevin₁₇" (F&SF, February 1995)
• "Observations from the City of Angels" (Salon.com, July 16, 2003)
• "Strong Medicine" (Salon.com, November 10, 2003)
• "Objective Impermeability in a Closed System" (original to this volume)
• "Not of This Fold" (original to this volume)

Originally published in Asimov's Science Fiction, April/May 2006.

• 2007 Hugo Award nomination, best novella
• 2007 Nebula Award nomination, best novella
• 2006 Theodore Sturgeon Memorial Award finalist
• Locus Recommended Reading List, 2007
• Reprinted in Science Fiction: The Best of the Year, 2007 Edition, edited by Rich Horton (Prime Books)
• Reprinted in Czech in Trochu Divné Kusy 3, edited by Martin Šust (Laser Books)
• Translated into Japanese by Yoshio Kobayashi
• Reprinted in Forever Magazine, Issue 43, August 2018.
• Reprinted in ebook format by Sinister Regard Publishers, 26 May 2020.