Our bookcases are full of books I haven't looked at in years. Cookbooks, self-help books, workbooks and textbooks, antiques for sure! Now I have stacks ready for the 2nd hand shop or salvation army, will those places be open again? The art-books are still on the shelves, including my art history textbook from way back. That book went with us to the Loire Valley when we camped and visited chateau after chateau and many cathedrals. I would tell Jim I couldn't remember much about "this" except for the helix staircase, and I'd return to the book, look up the site, and there was one sentence about the helix staircase! Pretty exciting to get to see first hand many of the places I'd only studied.