Atomic Habits: An Easy & Proven Way to Build Good Habits & Break Bad Ones, by James Clear.
Health
Life Time: The New Science of the Body Clock, and How It Can Revolutionize Your Sleep and Health, by Russell Foster.
Leadership
Rise: 3 Practical Steps for Advancing Your Career, Standing Out as a Leader, and Liking Your Life, by Patty Azzarello, Keith Ferrazzi.
Project management and planning
Shape Up - Stop Running in Circles and Ship Work that Matters, by Ryan Singer.
Software engineering
Accelerate - The Science of Lean Software and DevOps: Building and Scaling High Performing Technology Organizations, by Nicole Forsgren, Jez Humble, Gene Kim.
Joel on Software: And on Diverse and Occasionally Related Matters That Will Prove of Interest to Software Developers, Designers, and Managers, and to Those Who, Whether by Good Fortune or Ill Luck, Work with Them in Some Capacity, by Joel Spolsky.