The California Digital Library (CDL) is pleased to announce the availability of an extensive self-guided tutorial for its eXtensible Text Framework (XTF) application (http://xtf.wiki.sourceforge.net/). XTF is an open source, highly customizable piece of software supporting the search, browse, and display of heterogeneous digital content and offering efficient and practical methods for creating customized end-user interfaces for distinct digital collections. The tutorial provides guidance for implementing and customizing XTF, from core functionality to overall look and feel. Downloads for the Mac and Windows operating systems (http://sourceforge.net/project/showfiles.php?group_id=119724) are available from the XTF Project page on SourceForge (http://sourceforge.net/projects/xtf/), along with the complete distribution and documentation.