Full disclosure; the links below are to my Amazon Associates account, and so I would get a little financial kickback if you decided to purchase. Also, take a look at highlights under the Categories tab.

• Outcomes Over Output: Why customer behavior is the key metric for business success Paperback - Joshua Seiden
• The Manager’s Path: A Guide for Tech Leaders Navigating Growth and Change – Camille Fournier
• The DevOps Handbook: How to Create World-Class Agility, Reliability, and Security in Technology Organizations – Gene Kim, Jez Humble, Patrick Debois, John Willis
• The Delicate Art of Bureaucracy: Digital Transformation With the Monkey, the Razor, and the Sumo Wrestler by Mark Schwartz
• Sooner Safer Happier: Patterns and Antipatterns for Organizational Agility: Antipatterns and Patterns for Business Agility by Jonathan Smart
• Accelerate: The Science of Lean Software and DevOps: Building and Scaling High Performing Technology Organizations by Nicole Forsgren PhD, Jez Humble, Gene Kim
• Designing Delivery by Jeff Sussna
• The Phoenix Project by Gene Kim
• The Lean Startup: How Constant Innovation Creates Radically Successful Businesses by Eric Ries
• The Lean Mindset: Ask the Right Questions by Mary Poppendieck & Tom Poppendieck
• Brownfield Application Development in .NET by Donald Belcham & Kyle Baley
• Preventing Good People From Doing Bad Things: Implementing Least Privilege by John Mutch & Brian Anderson
• Continuous Delivery: Reliable Software Releases Through Build, Test, and Deployment Automation by Jez Humble & David Farley
• Good Strategy/Bad Strategy: The difference and why it matters by Richard Rumelt
• Lean Enterprise: How High Performance Organizations Innovate at Scale by Jez Humble, Joanne Molesky, and Barry O’Reilly
• The Art of Monitoring by James Turnbull and Sid Orlando
• Leading the Transformation: Applying Agile and DevOps Principles at Scale by Gary Gruver, Tommy Mouser, and Gene Kim
• Thinking, Fast and Slow – Daniel Kahneman
• Masters of Doom: How Two Guys Created an Empire and Transformed Pop Culture – David Kushner
• Site Reliability Engineering: How Google Runs Production Systems – Niall Richard Murphy, Betsy Beyer, Chris Jones, Jennifer Petoff