 It is a highly sought after and competitive feat to dance this "third round" — at regional, national, and world competitions, only a small percentage (typically the top half of dancers graded after the first two rounds) of dancers are invited back to perform.The "Céilí" dances used in competitions are more precise versions of those danced in less formal settings.There is a list of 30 "Céilí" dances which have been standardised and published in "An Coimisiún's" "Ar Rinncidhe Foirne" as examples of typical Irish folk dances; these are called the "book" dances by competitive stepdancers.