Here is an interesting posting from the SCA Librarians list that has been forwarded to other sca cooking discussion lists. If you use libraries to get started on researching subjects then having a heads up that search terms will be changing will be helpful to you.
I don't know how long this type of change takes to be updated in local library catalogs - for know I'd keep using terms like Cookery and try the other terms using in the pdf article occasionally.
> ----- Original Message -----
> Hello all!
> I'd like to share with you a change in Library of Congress'
> subject headings for "Cookery".
> It used to be that "cookery" was the term to use when
> searching library catalogs, but there will be changes implemented in
> May and June 2010 that will change all subject headings from the
> use of "Cookery" to "Cooking". There also will be a topical
> subject heading established for "Cookbooks" and also a genre/form
> heading for "Cookbooks".
> This means that materials -about- cookbooks can bear the
> topical heading "Cookbooks" and books that -are- collections of
> recipes will be assigned a genre/form heading "Cookbooks".
> This should make searching for cookbooks and materials
> about cookbooks much easier in library catalogs that use the
> Library of Congress Subject Headings. This would include most larger
> academic institutions, and many public and special libraries too.
> To read more, check out this pdf at the following url:
> Siobhan O'Neill