Why you should make them, and what they are.
A press-kit is something that a lot of indie developers do, in fact it is something a lot of businesses do. It is basically a tidy way to package information that you would like to announce, and then give to ‘press’. There are a ton of amazing resources out there about press-kits, but, if you have no idea what they are or why you should bother this post will be for you!
If you would like a more in-depth look at press-kits and how to make an amazing one, you should check out this website, this Reddit post, this video, or this video.
For examples of Press-kits check out the ones for: Furi, Shovel Knight, Hollow Knight, In Blood, Cinders, Along the Edge, The Letter, Changeling