My son & I listened to the CDs on a father/son 3-day trip. We used the driving time to listen, stopping whenever either of us had a question or comment. It was great travel time and left us free to enjoy the non-travel portion having fun and interacting. My 12-year-old son really got a lot out of it, and it opened doors of conversation between us that might have been more awkward or un-thought-of otherwise. I highly recommend this.