More sub categories:
Postcard Book - Black&White Humour
Postcard Book – Vincent van Gogh
Postcard Book – Schräge Schilder
Postcard Book – Heart Designs
Postcard Book – Kittens
Postcard Book – Life
Postcard Book – Trees
Postcard Book – Meer
Postcard Book – Egon Schiele
Postcard Book – Blue Planet
Postcard Book – Bridges
Postcard Book – Amadeo Modigliani
Postcard Book – John Singer Sargent
Postcard Book – Jan Vermeer
Postcard Book – Auguste Renoire
Postcard Book – Piet Mondrian (not to be sold in usa and spain)
Postcard Book – Edgar Degas
Postcard Set Gustav Klimt - 3
Postcard Set Claude Monet- 1
Postcard Set Claude Monet- 2