Here's what I have so far done to the tei_simple.odd document so far, and why. Sadly this is not the end of the story, but I will send another message about that anon. 1. The original draft contained large amounts of promotional material about the Simple project, and some tutorial material about XML and about the processing model. I removed all of it, on the grounds that it was either inappropriate or unnecessary in a tutorial introduction to the Simple schema. 2. The schema included a large number of elements which seemed quite inappropriate for something called "simple" -- notably elements relating to detailed genetic transcription, or manuscript description. I removed these: if you want to make a detailed transcript of a manuscript, you need more than TEI Simple, but your task isn't simple either. 3. The schema originally included "all" of the TEI Header (in practice this seems to have meant "all of the TEI Header when only some modules are included", as opposed to "the TEI Header as defined by TEI All"). I can see no good reason for this, so I have defined a subset of the Header, excluding some dozen or so highly specialised elements (specifically: appInfo application cRefPattern calendar calendarDesc correction correspAction correspContext correspDesc geoDecl hyphenation interpretation normalization punctuation quotation refState refsDecl samplingDecl scriptNote segmentation styleDefDecl stdVals typeNote). Simple should make it easier to create a new header; if you want to import an arbitrary header created by someone else, use TEI All. 4. As a consequence of (3) above, the schema originally specified by schematron rule that several elements were permitted only in the header and not in the text. I have simplified these rules considerably; what would be more useful in my view would be to add rules reducing the number of elements permitted in the Header. 6. I removed a few elements which did not seem to me to be either necessary or simple (addSpan, desc, handShift, rhyme, spGrp); I added a few elements which were needed to cope with the presence of bibl in the body of a document (biblScope, editor, email, relatedItem); I added facsimile, surface, surfaceGrp, and zone since the text seemed to imply that there was a Simple use case for digital facsimiles. 5. I systematically checked that every element defined by the schema was at least referenced by a specDesc in the body of the doc, and where possible accompanied by some minimal explanation or exemplification. This turned out to be a lot of work, since the original document was extremely detailed in some cases and entirely silent in others. I also took the opportunity to bring some of the prose up to date and to simplify some of its language, though undoubtedly there is more to be done there. You can see the current state of the draft in the dev repo, at P5/Exemplars/tei_simple.odd