A well-known author in the XML community presents a complete handbook to the DTDs created for specific and technical purposes. The CD-ROM contains DTDs discussed in the text, browsers capable of analyzing the individual DTDs, sample documents, and data for each format.
Simon St. Laurent is a Content Manager at LinkedIn Learning, focusing primarily on front-end web projects. He has been co-chair of the Fluent conference and of OSCON. He's authored or co-authored books including Introducing Elixir, Introducing Erlang, Learning Rails 3, XML Pocket Reference, 3rd, XML: A Primer, and Cookies.
You can find more of his writing on technology, Quakerism, and the Town of Dryden at simonstl.com.