It's been a very long time since I read Zen And The Art of Motorcycle Maintenance, but I thoroughly enjoyed it. The author, Robert Pirsig, rode his little Honda across the country with his son Chris and another couple riding a BMW. I noticed just yesterday he passed away.
The story blends together their experiences on the trip with a whole lot of philosophy in an alternating narrative, there's even a bit of motorcycle maintenance thrown in, though that is certainly not what the book is about. I read it during college back in the 70s when it was first published and it was highly acclaimed and based on my opinion at the time I would have agreed, though whether I would think the same of the book today as I did then I can't say.
His passing is just another signpost along the road. The years when the book was new and popular are long gone, but if you're one of the many who read it with pleasure, it's nice to think back and smile at a simpler time.