Thx. I'm familiar with what yellowing implies. I appreciate the additional intel provided. 
What was weird was a few books around the same time, some before and after Avatar, had some yellowing on the inside covers. I pretty attributed it to the cover paper stock and perhaps interio paper stock. It would appear Pocket was using different kinds at the time and settled on something better for later work.
What was weird was a few books around the same time, some before and after Avatar, had some yellowing on the inside covers. I pretty attributed it to the cover paper stock and perhaps interio paper stock. It would appear Pocket was using different kinds at the time and settled on something better for later work.
