Some personal favourites in reading material. Most of it is related to IT (big surprise), but every now and then a random entry will appear.
The Phoenix Project
A simple and straightforward book about applying lean manufacturing principles to organizations and their IT-operations/Software development. More about the culture shift required on a high level, as opposed to low-level technical details.
The Lean Startup
It’s hard to summarize just how much this book taught me. Everything from lean manufacturing and short development cycles, to finding and tracking the correct metrics for your software product. If you’re in software development or product development, read it.