If we want to make texts which have been encoded in XML more readable or more usable for human readers, we generally need to convert these documents into other types of files. We may choose transform these XML documents into HTML files, or into PDF files, for example. For conversions such as these, we can make use of the eXtensible Stylesheet Language for Transformations (XSLT). This tutorial contains step-by-step instructions on how to write an XSLT stylesheet.