Called Becoming a Better Programmer, it is a handbook for people who are about code.
This early access edition already contains 14 chapters, and there are many more coming. There is a free "sample" version available so you get a taster of what you'll be purchasing.
As a pre-release, it's available at an introductory price. The price will go steadily upwards as the book nears completion. Buy now to enjoy the best value! (That's the sales pitch - I suck at that kind of thing.)
Get it from gum.co/becomingbetter. Join the book discussion here: moot.it/becomingbetter.
It would genuinely love to hear any feedback, praise or criticism that will help improve the book. Suggestions for topics to cover are also of real interest.
My honest hope is that this book does just what it says on the cover: helps many developers improve their skills, to become more productive programmers.