Indexing Booksby Nancy C. Mulvany. One of the most well-known and respected references on the practice of indexing.
Indexing from A to Z by Hans Wellisch. Provides an excellent overview of indexing. The Indexer MagazineThis international journal is published by the British Society of Indexers and is the finest source of indexing trends and opinions currently available.
Newcomers: The Indexer Collections This ebook is a collection of articlesoriginally published in The Indexer Magazine and especially appropriate forsomeone interested in indexing.
Webster's Biographical DictionaryThough this has not been updated since 1995 it is still one of the finest biographical dictionaries and name sources availableon historic and deceased individuals.
Webster's Geographical DictionaryAn excellent source on geographical locations and aid for the correct sorting of geographical names.