I removed wallpaper in my kitchen and the walls need skim coated. The walls look like what it looks like after removing old duct tape, like cheese cloth.

I scrubbed the wall really good 2-3 times and primed. Now I wanted to skim coat. Does anybody know of a good website, book, or video on skim coating? Can I just spear all purpose joint compound on the wall with a wide taping knife very thinly, then sand? What is the best approach?