Seems to me like two different issues; developer/API documentation and Admin/User training.

Developer docs is pretty bad, no way around that. Information is incomplete and scattered. As far as a book goes, that is the wrong answer. They are often outdated by the time they publish, or shortly afterwards.

For admins, there is a wealth of material, but it's not really organized in an easy to follow manner. There are the admin manuals, which is a helpful reference, and the video tutorials, which are getting outdated and aren't really in a natural progression either. It would be nice if they built off of each other (step 1 add a page, step 2 add a module step 3 edit content). Things def got better when Hammond was running the show, but since he has left, that service has been seemingly been replaced with sales webinars. Thanks for letting me voice my opinion.

Easy perhaps for someone with experience with DNN. I recently sent someone to the video page and they were overwhelmed with where to start and where to finish. Plus the glut of v 6 videos doesn't help.

Perhaps breaking them out into Beginner | Advanced or more of a walk-through.

You just finished "How to Make a Page" What would you like to learn next: "Add new content", "Copy existing content", "Copy a Page" ...

Just thinking out loud on how to make this a better resource for beginners.

I agree very much that there is a serious lack of a conceptual description of DNN. The concepts do not exist anywhere that I have found. I assume that the people most capable of providing the concepts of DNN do not realize what I mean. If so then perhaps I should do it but of course I need to learn DNN first.

Another thing for people to understand is that DNN people like to do videos. There is much more available in videos than in textual descriptions. I prefer the textual for many reasons and amazingly there is not much of that. I think that the official documentation is seriously lacking.