"Soon I Will Be Invincible" was published by Pantheon Books, an imprint of the Knopf Doubleday division of Random House, and released on June 5, 2007, as a hardcover. In the UK it was published by the Penguin Group imprint Michael Joseph. An audiobook was released at the same time featuring the voices of J. Paul Boehmer and Coleen Marlo. Grossman promoted the book by attending book signings in major American cities. In the UK it was promoted by wrapping telephone booths in advertising, in reference to Superman changing outfits in such booths. The cover art, which features photos of stereotypical comic book character clothing like a mask and gloves, by Chip Kidd was called "excellent...sure to attract readers". By contrast, Bryan Hitch's cover art on the British edition, which features hand-drawn illustrations of the book's characters, was called "counter-productive...[or unnecessary" due to its graphical interpretations of characters that were deliberately written in prose only. The book was short-listed for the 2007 John Sargent Sr. First Novel Prize. Work on a film adaption began in 2008 through Strike Entertainment with scripts being written Dan Weiss and Grossman.