I am not saying that any of my books are rare, and that is not the point of this, but I do want to preserve them. Most are non-fiction, some are from the 1800's, and a few were piblished by MIT. After being in storage for a few years during rebuilding, some have mold and or dirt on them. I wanted to clean them properly, and contacted the Rare Book Library at The University of Illinois. They were kind enough to send me the following links. I have not read through all of them yet, but I thought this might be useful to some list members Hello, XXXXXX asked that I send you a list of resources to aid you in your conservation needs. The following sites offer comprehensive and easy-to-follow guides: http://www.nps.gov/history/museum/publications/conserveogram/04-09.pdf http://www.nps.gov/history/museum/publications/conserveogram/03-04.pdf http://www.mnhs.org/preserve/conservation/bookspaper.html http://www.conservation-us.org/index.cfm?fuseaction=Page.viewPage&pageI… http://www.loc.gov/preserv/familytreasures/ http://www.nedcc.org/resources/resources.php This is extremely in-depth and may be above and beyond what you are looking for: http://cool.conservation-us.org/coolaic/sg/bpg/pcc/12_mold-fungi.pdf Thanks, Paul