A Master Class in Brand Planning by Stephen King - if you working in marketing or advertising, consider this you first stop - a collection of papers and speeched from the 70s to the 90s, yet perhaps more relevant now than ever.
The Craftsman by Richard Sennett - whether you've got a specific interest in material culture, or just want to think more deeply about the relationship between thinking and making, take a good stroll through this. So many great, concise, quotable ideas.
The Plentitude by Rich Gold - As someone who wears many different hats in work, I loved Gold's description of how his four (scientist, artist, engineer and designer) work together. A rip-roaring read, which is rare for books like this.