Hi Lawrence,
The Logic 101 takes you from start to finish, in a long, 5 hour excurssion ... :)
The demo files for the Logic programs are not included because the files we use are apple loops that just come with Logic, so you should be able to find them in your Loop browser, just like in the tutorial lessons.
You can also use loops of any type you want and follow along, there-by making a song that sounds as you like.
The big idea is to cover the principles, and not an exact work flow with set source media as the Apple Pro Training series might do ... personally, I don't think that's the best way to learn, even though I write those books quite often (at least, in the past).