While browsing through the Design Essentials website, I came across this page in which the offer an instruction guide for six natural hair styles. Those styles include Random Curls, Dry 2-strand Twists, Finger Curls, Wet 2-strand twists, Comb twists, and 2-strand flat twists.
There is something there for every length so click the link to view the site:
FYI: The instructions are an adobe file so you will need the program to view the document.