Robert Black's upcoming book on gravity
Cover art and title subject to change without notice
See the blurb on the book here: Blurb link
If you cannot wait for the book, a select portion is available now as an essay. This essay includes the new theory (with diagrams) is up on the General Science Journal.
"Gravitation As A Two-Part Process": (a .PDF) <gsjournal.net>
For the Literary Agents, there is a Preview here.