Why Does E=mc²? (And Why Should We Care?) by Brian Cox
Has some new (to me) angles to help you try and understand relativity and quantum mechanics so I enjoyed it. I can feel that clarity starting to slip away again two days later though...
The 4 Disciplines of Execution: Achieving Your Wildly Important Goals by Sean Covey
Not as religious as your typical business self help book, still wildly repetitive though. Important goal -> focus on leading rather than lagging metrics -> simple scoreboard -> peer accountability on a weekly basis -> win. It's pretty much scrum for the non-development crowd (assuming that having a captive customer can be counted as a leading metric which I think it does).
A Good and Useful Hurt by Aric Davis
Well paced and strange book about catching a serial killer via unexpectedly powerful tattoos.