Among the values and goals set for the Cover Pages resource is a commitment to support a cumulative record: "The core axiological principle undergirding SGML/XML (asset protection through information longevity) is applied to the collection development policy of The Cover Pages website itself. Information collected about the progress and regress of markup language standards is not thrown away when it comes to be popularly perceived as irrelevant to the next wave of technology innovation. Representative materials are retained indefinitely." The Library also features specialized reference collections for beginners and advanced users.
Resources categorized as belonging to the Cover Pages Library include:
Bibliography. The structured bibliography references literature especially from the 1980s and 1990s.
Technology and Society. Multilingualism, Patents, Digital Rights Management, Conformance, Accessibility, Security, Privacy, and Personalization.
Semantics. Facilities for declaring datatypes and expressing semantic integrity constraints in the markup context.
Technical Topics. Grammar, Literate Programming, Architectural Forms, Namespaces, Groves, etc.
Software. Software tools (especially free tools) for validating and otherwise processing SGML/XML documents.
Related Standards. Some collateral standards related to SGML and XML.
Of Historic Interest. Collections no longer maintained but useful or amusing.