I am a Series Editor for Pearson's Addison Wesley imprint, helping to produce the Professional Ruby Series line of books, including my own bestselling title The Rails Way (and its successors).
Serverless is currently on pause while I wait to have free time and for the ecosystem to calm down a bit.
I have a few non-series books in progress. One is called How to Eat Nachos and Influence People. Click on the link to sign up for its beta release.
Patterns of Rails Application Architecture is my magnus opus. I spent 5 years thinking about what would go into it, and started work on the manuscript once The Rails 4 Way was finished. Release date: TBD