Mein Frühlingsspaziergang
Mein Winterspaziergang
Mein Herbstspaziergang
Die Welt unter der Lupe - zu Lande
Seasons Coloring Book: Published in Sweden as "Tidevarv"
Tenderful Enchantments
Die Welt unter der Lupe - zu Wasser
Colorist's Special Effects - color interior: Step by step guides to making your adult coloring pages POP!
Romantic Country: The Third Tale: A Fantasy Coloring Book
Colorist's Special Effects 2: Step-by-step coloring guides. Improve your skills!