Not sure if this belongs in this forum or in the conservation one, but since it is naiive, I will post it here.
OK, so my collection has been in stacks for many years. I have just moved them to vertical storage in archive boxes. In doing so, I noticed that many have develop some curving from being stacked for long (?I have seen some people say this is not a spine roll). Here is an example.
I also have read many people say this problem can be improved by pressing. My problem is that there are no professional pressers within 10,000 miles of where I live!
So could I fix this by carefully placing a (suitably protected) book underneath a heavy weight? Or will this do more harm than good? Is there a more sophisticated but still DIY solution?