What's a good practice celtic cable for a beginner?

I’ve never cabled before, particularly celtic cables, so what cable would be a good one for me to do a swatch of? I want get good at celtic cables and make Rogue from http://www.girlfromauntie.com :thinking:

http://www.helloyarn.com/irishhikingcarf.htm

This is a good beginner scarf.

That ones pretty :slight_smile: Do you know of any that have charts? I’ve never read a chart before, and that’s all that Rogue has.