Our local wine and specialty food shop in the 'hood, Provenance has carried it in the past but didn't have any while I was shopping so I found some at Whole Foods. I'm sure most Italian specialty shops would carry it, but I wanted to travel as little as possible.
To prepare, just add a cup of farro to a sauce pan and cover with water about an inch or so above the grain. Boil for about 30-40 minutes, or until the farro is tender, and drain
I let it cool and added fresh mint, fresh parsley, a little basil, cucumber, olive oil, lemon juice and a dash of salt and pepper.