Following the announcement last month that it will begin accepting unsolicited submissions and pitches, Oni Press has released detailed guidelines that not only cover what to send, but also what not to.

Among the things to avoid, "Superheroes! They have their place but their place is not with us," and "long-form series or stories in oversaturated genres such as supernatural noir, zombies, vampires and gritty detectives with a dark past." Also, "delicate subjects such as rape and sexual abuse as fodder for exposition in genre stories."

Oni's submission periods will operate on a two-months open, two-months closed schedule, with the first window opening from May 1 to June 30.

The guidelines break down what's required from writers, artists, colorists and cartoonists (or writer/artist teams). They also include insights from four of the publisher's editors (diversity in creators, characters and genres appears again and again).

Founded in 1997, the Portland, Oregon-based Oni publishes comics ranging from Scott Pilgrim and Stumptown to The Bunker and the upcoming Invader Zim. See the complete guidelines on the company's blog.