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+thml2osis
+=========
+
+This project consists of the XSLT file thml2osis.xslt which converts ThML to
+OSIS files, and accompanying tests.  In order to use thml2osis, you will
+need some kind of XSLT processor.  Many XML libraries may have this
+functionality, and the command-line Unix tool 'xsltproc' can also be used.
+XSLT was chosen for this project to make this tool as portable as possible,
+and because XSLT is ideally suited for this type of task, despite its
+limitations.
+
+Usage:
+------
+If you have xsltproc installed, thml2osis can be used from a Unix shell
+prompt as below:
+
+xsltproc --novalid thml2osis.xslt your_book.thml > your_book.osis
+
+
+Limitations
+-----------
+
+thml2osis has been developed using the OSIS spec and existing ThML texts
+that were wanted in OSIS format.  Also, it is almost impossible to convert
+perfectly from ThML to OSIS given the differences in the formats, and the
+flexibility of both formats.  So, don't be surprised if your ThML file is
+not converted completely!  In particular:
+
+ - Many fields in the ThML headers will be silently discarded where equivalent
+   fields do not exist in OSIS.
+ - It is possible that markup and text in the body will be discarded
+   silently, though every effort will be made to avoid this in v1.0 and
+   later.
+ - Stylesheets and styling information will generally be discarded.
+