I have a two hour commute each day and I'm trying to utilize that time in some positive fashion. I'm studying for the GRE and was looking for something I could listen to that would contribute to this goal/project. This was a waste of money, since I knew 98% of the words. Also, a few words I thought were not very well described, and the sentances were contrived. The way they use two words with the same root in a sentance seems to be a sure fire way in my book to help someone confuse the two words' meaning. On the plus side, buying this CD set has now made me see the futility of this method of studying for the GRE, and saved me from investing in a more expensive CD set. If like me, you're studying for the GRE, my advice to you is to set aside time to read scholarly journals or essay collections, dictionary in hand.