In the past, when I finished a book, it usually took me a couple of weeks to finish all the revisions, proofread, format, and distribute it, along with all the initial announcements.
It happened this time, too, for The Chained Adept, but the difference was, I kept right on at the same time with my daily writing for the next book, Mistress of Animals, the second book in the Chained Adept series.
You see, I like to include the first chapter of the next book in the back of the prior book, and I can only do that if I've written that first chapter, and that means that I need a title, and a good idea about the plot, and so forth. So, when I got my obligatory first chapter done I just… kept on going, instead of stuttering to a stop to focus on the release. Write in the morning, other stuff afterwards.
All of a sudden, I've got a quarter of the next book done, even though the last was just released this week. I like doing things that way.
I'm even ahead of my cover artist, but he's already sent me his first conceptual sketch (approved!) and I can't wait to see what's next. Of course, this only works because I've already written the scene that became the obvious choice for the cover. At the moment I'm on track to get this one done in two to three months (keeping my fingers crossed), so he still has enough time for his part.
My fastest book so far (The Ways of Winter) took less than two months for 360 pages, and I'm still happy with it. Don't know quite how I did it, but I'm working on making that lightning strike again.
Can't talk too much about the plot, yet, lest I give some things away. You'll have to wait a little while for that.