If you already have supplies, Anne will work with what you have as far as brushes and similar colors. As far as paper is concerned, Anne asks that you avoid the watercolor paper that comes in a spiral pad. She prefers students to use 140 arches paper in the 11x14" size block.
Other supply suggestions for those who are just beginning:
# 6 or #7 and #10 Loew-Cornell Golden Taklon Ultra Round (These are black with a red ring on them.)
3/4" or 1" flat brush
Professional Grade (avoid paint named Academy, Cotman)
New Gamboge Yellow
Burnt Sienna (Winsor Newton)
Container for water