Attached Link: http://arcana.daz3d.com/tutorials/index.html

Here are some great tutorials on using photoshop to create skin textures, painting clothing using renders from poser etc. These are tutorials from Daz3d's Arcana web site, but you don't have to buy Daz3d products to use the tutorials. You've mentioned texturing and clothing so I thought I'd send ya a link you might not have seen. Poser can be as simple or as advanced as ya want to use it. Just depends on what kind of art you want to create. hope it helps. Never be afraid to ask for advice, people here help in different areas (just saw the thread "where is the toilet" haha!) I haven't found a Poser Bible per say, all the books on poser I've looked through were rehashes of the manual or just not to my liking, but there are a few books floating around out there. I find Poser tutorials on the web have been best helping me learn Poser (I'm still a newbie myself). hope it helps