This tutorial is meant for people who have never touched a crochet hook before and should teach you everything you need to make a scarf.

The stitch featured here is one of my favorites: half-double crochet (may be known by a different name outside the US). It's not too airy of a stitch (like double or triple crochet), and you can make stuff a hell of a lot quicker with it than with single crochet.

If anyone absolutely needs to know how to make single or double crochet, it's easy enough to pick those up from half-double.
For single crochet, leave off the first yarn over on each stitch.
For double crochet, pull the final yarn over through only the two loops next to it, then yarn over again and pull that loop through the last two loops.

This is also my first tutorial. If any part of this thing doesn't make sense, please tell me!

Also: for those interested in how I did the color changes in this tutorial, then yarn itself is dyed in multiple colors, so the color changes happen on their own. I chose that particular yarn because it's a heck of a lot easier to see the individual stitches with it than with a single-colored yarn. Besides, I've crocheted with multiple colors before and it's a pain in the ass and definitely not something a person whose never crocheted before would want to deal with!