Art supplies
These are the links to my favorite art supplies, organized by material: watercolor, gouache, and sketching.
Gouache
watercolor
BOOK
I've put together a step-by-step book on watercolor painting, although it's currently only available in German.
PLEIN AIR
My trays, bags, tripod and other gadgets for plain air painting:
Boxnpaint pochade and paint storage, save 20% with my code JOWITA20 *: