For people keeping track, DC Comics have released 52 new issue ones, pretty much restarting their continuity, heavily amending what’s left over. So far it all seems a little teenage in tone and scope, which is a shame, but they’re not the only company who do this sort of thing.
Marvel Comics are DC’s main competitor as far as superhero comics. Both have very different flavours. DC is more mythological and grandiose while Marvel skews to more personal stories & conflicts. Both can change these rules about, but the flavour remains the same.
They do most things differently, and yet they share many traits. Here is a look at how Marvel handle these kinds of reboots and resets, without having to overtly change everything they do.