A week - 10 days ago I happen to take it off the shelf and was looking over. The top and bottom of the pages looked a little different, I mean no foxing, no yellowing but bright white. Not freaky different but I can see a little swirl and the pages are now all the same height.
I went to visit two used book stores and asked what is this all about. Both said that's common. One grabbed a book and a sanding block and outside we went where he gave me a demonstration.
He said its wood and a light sanding is fine. Any thoughts on the subject?
