The below document released December 15th 2017 (two weeks ago) by NASA scientists is so informative, well written and easy to understand that I chose to break from my normal routine and not comment on it rather simply display it in its original form.
While there are several points of interpretation I don't agree with, the overall accuracy and educational value is impressive.
This is the single best document, to date, I've read about the Pluto system.
Its not overly scientificy rather it is packed full of the best most accurate information about Pluto I've seen contained within one document and is written in a format similar to what I've tried to do on this web site. That's probably why I like it so much.