Superhero Stamps[ASSOCIATED PRESS]Batman and Superman, Wonder Woman, Supergirl and a half dozen other superheroes will star on new postage stamps being released Thursday.

The new 39-cent stamps and 24-cent postal cards will be made public at a comic book show in San Diego, and will go on sale nationwide Friday. The stamps are sold in a sheet of 20, half featuring the individual superheroes and half showing covers of comic books starring them.

The Postal Service reports this is its first set of super hero stamps, indicating more are likely to follow.

Read more.