Well, only one author comes immediately to mind, but I'll be showing my age.
Weimar W. White published a number of articles on the topic over the years, and in 2004 he published a compilation of articles in book format (2nd edition). Some deal with the cleaning of coins while others address coin preservation.
As Warner notes, a number of more recent articles have come out, but I'm not sure where to find all of the most up-to-date information. More details will be coming out based on the recent "Coin Doctor" lawsuit, so perhaps no recent book could be the "final" authority.
What sources can our readers recommend?
I found the above image on the Wizard Coin Supply site. For more information, or to order, see: