Girl writes passionate letter to DC Comics pleading for more female superheroes

An 11-year-old girl's letter to DC Comics has gone viral with many praising her articulate plea for more diversity in comic books.
Rowan wrote the letter to express her dismay at the lack of female superheroes and merchandise, saying it was unfair that there were many superman and Batman movies but no Wonder Woman movie.
Here's a transcript of the letter in full:
The tweet was retweeted a thousand times - and DC responded.
Yes Rowan, girls read comics too! Wonder Woman movie & Supergirl TV both in the works, with more exciting girl power announcements soon!
— DC (@DCComics) January 30, 2015
Renée, Rowan's mother, further explained Rowan's frustrations to the Daily Dot:
“The things is, it's not that there are no female superheroes," Renée said. "There are lots of them, as comics fans know. But in terms of what's available for kids when you walk into Target or Toys-R-Us, the superhero world looks pretty exclusively male.
"That's frustrating for girls who are fans; the boys can wear their favourite superhero all the time, but to this day we've never seen a Hawkgirl T-shirt for kids. It makes the girls feel like they're not important in the comics world, and that's hard when it's something that they love so much. Frankly, Rowan doesn't like not being taken seriously."