A reading list from controlledvocabulary.com. “David Riecks founded ControlledVocabulary.com as a resource to help others learn how best to build controlled vocabulary lists, thesauri, and keyword hierarchies for describing images in databases. He has been involved in many recent standards initiatives as well as being a featured speaker at industry events such as PhotoPlus Expo, the Microsoft Pro Photo Summit, and the first and second International PhotoMetadata Conferences.”