I reckon advanced books are allowed to cover the same techniques and/or tackle the same problems as intermediate books would, except they should be cranked up a notch. For instance; creating a 3-column layout, but not only a 3-column layout, but an elastic layout with equal-height columns, with background-images, borders, the whole shebang.
Or vertically aligning something without knowing in advance how high the element will be.
I think by just adding parameters like that, you can turn intermediate stuff into advanced stuff 🙂