The following resources (in alphabetical order) will help you out with the stitches and techniques used in Simplexity:
Yarn Over (yo) (see also Double Yarn Over, above)
There's also a free planning worksheet and tracker available when you sign up here!
Cowl Blocking Tips
I blocked my Simplexity Cowl the same way as I blocked my Willowfall Cowl. You'll find an explanation of my method here!