I bought this for my 9 year old son, who already owns the visual dictionaries from episodes 1 and 3. When this came out and it had all 4 visual dictionaries plus extra goodies thrown in at a fraction of the price to buy all 4 I jumped on it. My son loves it and has noticed many of the illustrations and info not included in the visual dictionaries he already had before. The one gripe I have is that it seems to not have the same quality of photos as the other visual dictionaries, but it might just be me. I don't think he has noticed.