One of my favorites that I return to regularly and am continually fascinated by is an ex-library book, Life at Home in the Twenty-First Century. It's an "enthno-archealogical" study of about 30 families in early 2000s California.

I love the ambiance of libraries and used book stores so I tend to buy books with a little wear and tear and appreciate their uniqueness.

At the same time I'm loathe to make my own marks in books. I hadn't thought about that contradiction before.