For supplies: 

1.  Sketchbook with Mix media or drawing paper (minimum size 8x10)
2.  Pencils
3. Colored pencils (Prisma color pencils preferably) 
4. Micron pens sizes 02, 05, and 08
5. Optional: oil pastels, multi-colored pack of illustration markers, colored pens, high lighters, or any other writing utensil