Doc Geep's tutorials are some of the best - and most fun - you'll ever see.  Some people find the layout a little too busy for easy comprehension but if you stick with 'em and get used to the style, there's a wealth of information to be found.  Search for "geep" on the forum and hunt for links to his externally sited tutes.  I don't have the link to hand right now.

IMO, the single most important thing to learn with Poser - before anything else - is installing and organizing content.  If you get to grips with this, you'll have a good basic knowledge of the different file types, what they do and how to use them.  It's amazing how many people get into a tangle with this at the start. 

Coppula eam se non posit acceptera jocularum.

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