Tonight I'm looking at the 6 volumes of the 2011 edition I received today. SG simplified stun by simplicity. No watermarks, no perforations and no papers difference. Of course no re-entries and rarest varieties. Simplicity at is best Someone who will make his own albums fallowing this catalog will have a very good representIon of all the stamps of the world in one only version. No more expensive watermark liquid.
If we collect the world we don't need all the varieties, what propose SG in the simplified is more then enough and quite simple. Nothing stop someone to get more specialized in a country or 2, but can he be specialized in all the world? I don't think so.
Very happy with it especially @ $65 for brand new books
