Star Trek: Strange New Worlds (sometimes abbreviated as SNW or ST:SNW) was an annual collection of short stories set in the Star Trek universe, written by amateur writers chosen through an open submissions process. The first volume was published in 1998, with the tenth and final volume published in 2007. Each of the anthologies was published by Pocket Books, an imprint of Simon & Schuster. The main editor of these anthologies was Dean Wesley Smith, though he announced that Strange New Worlds 10 represented his last work on the project. Shortly afterwards, it was formally announced that the contest itself would not continue after its tenth year. Co-editors of the series included John J. Ordover, Paula M. Block, and Elisa J. Kassin.
Stories in the book anthologies "can be set in any of the Star Trek time frames and may feature any one or more of the Star Trek characters," according to the submission guidelines, and each anthology included a selection of stories for all of the live-action Star Trek series: Star Trek: The Original Series, Star Trek: The Next Generation, Star Trek: Deep Space Nine, Star Trek: Voyager, and (from 2002 to 2007) Star Trek: Enterprise. In more recent years, each anthology also included a section called "Speculations," containing stories which could not be neatly ascribed to any one of those series.
The rules for each anthology were first announced in the pages of the preceding anthology, and could also be found at the Simon & Schuster website.
Submissions were open only to "nonprofessional writers" (which the rules defined as those who had sold no more than two short stories) who were residents of the United States (excluding Puerto Rico) and Canada (excluding Quebec) over the age of 18 at the time of their submission. The stories themselves were to be original creations no more than 7500 words long and not previously published elsewhere. Writers were permitted to submit more than one story, though required each submission be mailed separately, and no writer could have more than one story published per anthology.