Supergirl gets the magazine format anthology treatment

We've seen these for Batman, Superman and the Justice League before (I posted about the latter here ), and now, in this so-called "Summer of Supergirl", Superman's cousin from Krypton has got her own over-priced, magazine format collection of four comics stories available outside of comic shops, just in time for her new movie. I heard about the magazine online, and so when I found myself in a…