This is an easy pattern. Circles are easy to crochet in general in simple dc, sc, etc.: just keep increasing groupings one more stitch farther apart for each and every new row and the circle should lay flat even if you keep going like that for forever.
Learn A New Crochet Stitch: V-Shaped Puff Stitch (Video Tutorial)
Stitch Story: The Invisible Fasten Off (one of my favorite crochet techniques).this sounds like the stitch a pattern I just recently used was asking for (it was in print, though, with no pictures). Nice to have the visuals to go along.