How to store old books?

I have some very old books stored in a trunk in the basement.......pages are very fragile and a little on the musty side. I'm sure that there is a better way to store them for preservation than the above mentioned method. I also have some old (early 1900's) Ladies Home Journal magazines in a box....again, I'm sure there is a better way to keep them.
I've decided this would be a good winter project to get these things organized.
If anyone has any expertise on this, I would love to hear from you!

Thanks!