Rosetta Stone cuts up to $175 off select language learning sets. Plus, they qualify for free 2-day shipping. With sets starting from $159, as listed below, that's the best deal we've seen from Rosetta Stone since September when we saw a selection of Level 1-5 sets (5 levels total) for $299 with free shipping. (For further comparison, we saw a selection of Level 1-5 sets for $199 with free shipping in August.) Choose from languages such as French, German, Italian, Spanish, and more. Deal ends December 30.