Interesting thoughts Rod
I'm not sure I like the idea of having observing notes in an imaging compendium though, although that would make for a nice seperate project for someone to undertake perhaps?
It would have been nice to have it a little bigger, I agree but the typos I didn't notice

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The variation in image info styles is quite nice I recon, this is not meant to be an all ecompasing text book remember.
Overall it is really quite excellent.
Mike