During my last vacation, I have read REWORK by
Jason Fried and David Heinemeier Hansson (both founder of Basecamp). Here is what I think about this book.
tl;dr: Holy shit. THIS. THIS. And a thousand times THIS. I love the pragmatism and lets move attitude combined with a provoking writing style. It reminds you how to apply culture and kicks you out of the corporate hamster wheel full of processes and clutter. A book you should read every year. Go, buy, and read it!