I've been struggling with the inheritance rules between the slide, slide layout and slide masters for quite some time, and decided to take a look at this e-book to see if any relevant information would come out of it. One of the first sentences I read was:

"The following markup sample shows how to reference a placeholder in the slide level using an ID value. The type does need to be specified so the generic body type is used."

Whereas the schema defining the ph element states that it is optional.
I certainly hope this is not indicative of the rest of the document's quality.

I don't fully understand your question. Perhaps you can be more elaborate? The section you refer to is quite clear, but does have a typo. My bad :) If you read the sentence you can clearly see that the 'nt is missing. Writing 'so...' isn't exactly logical if that wasn't the case.
Sorry dude, I hope the book helped though, it is quite clear on how to form the hierarchy you mention.

Wouter

Dear Wouter

I am struggling to start using OpenXML on Excel 2007 and spent lots of time searching on on-line help pages.   I can see that your book is meant for previous versions of Office.   I would like to know whether instructions in your book are good for Excel 2007.  Thanks

Vasudeo

Wouter,

Great resource, thanks!  I downloaded the samples, but I noticed many are missing.  For example, I could not find the sample for the customxml portion of the WordProcessingML section.  Any way I can get those missing examples?