In the box you will find many new maps for the basic game Agricola by Uwe Rosenberg. It also increases the diversity of possibilities even further. Is mainly for Agricola players a must that feel that they have the cards from the basic game a thousand times used. However, I think it is only at the point of need. The basic game is one of the most complex and best games in the last 10 years, and contains in itself an infinite variety, which makes these additional cards not mandatory.
Nevertheless, I have it and am satisfied with the purchase, as I said, for experienced players up :)