This pattern includes 2 versions - the fully patterned shawl, in fingering weight yarn, and a simple variation with twisted stitches only around the edges and garter stitch stripes filling the body, which is for any weight yarn and custom sizable.
There are how-tos for twisted stitches, the provisional cast-on, short rows, process photos and diagrams, and detailed notes on sizing, the construction, the charts, etc. All this makes for a lengthy pdf, but the written patterns are each 2 photo-less pages; the charts are 7 pages (including the legend page).
The charted slipped/twisted stitch patterns are designed to make knitting as intuitive and easy as possible - you’ll mostly only need to watch the charts for main color right side rows. There are row guidelines explained so that you can read your knitting as you go and mostly ignore the charts on main color wrong side rows and on all contrasting color rows.
All the stitch patterns are charted, and the edge patterns are also written.
The fully patterned version is an advanced level pattern; the simple variation is more intermediate.