It is difficult to find a web development language today which is as misunderstood as XHTML. In the following article we’ll examine why, sort out a few concepts that frequently confuse authors, and offer practical suggestions on real–life XHTML usage. The intended audience for this article are those developers who consider using XHTML for the first time, but also authors and content producers who wants to learn more about the topic of extensible markup languages. by Tina Holmboe 1.Introduction 2.The Purpose of XHTML 3.XHTML and the Content Type 4.Strictly XHTML 5.Lack of support 6.Content–Negotiation 7.Recommendations 8.References 9.Document Information