1DX III Shooting Vidoe Resources?

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Hey Folks,

I have switched from a Nikon D800 to a 1DX III.  The main reason for going to the 1DX III is for it's video capabilities.  I know how to shoot video as I have had a Sony FS7 and the D800 for years. 

So I am wondering if there is a book (preferably) or website dedicated to shooting video on the 1DX IIII.  Any of you know?

Thanks,

Robert