I've compiled a list of my favorite supplies to help you build your watercolor kits. You will need a palette, paper, brushes, and paint. (A few projects also require a good pencil set and transfer paper). My favorite brand of watercolors is M. Graham, but I've also used paint from Windsor and Newton and from Utretch. This list includes brands that I use and trust, but feel free to try other products. Just make sure that you purchase only professional-quality watercolor paints. The pigments react differently than cheaper student sets and I promise that you will see a difference in your paintings if you use high quality supplies. 

Palette:

http://amzn.to/2iKbL02

Paper:

http://amzn.to/2xOfIU7

Brushes:

Set- http://amzn.to/2xOtYwc

Small brush- http://amzn.to/2wjvk43

Medium brush- http://amzn.to/2vUBlkx

Paint:

Basic color set- http://amzn.to/2vuTr0R

Lamp Black- http://amzn.to/2wlI0Yd

Quinacridone Violet- http://amzn.to/2xAS7Hj

Burnt Umber- http://amzn.to/2vuR2Uh

Quinacridone Rose- http://amzn.to/2wlWNlR

Pencil/Eraser/Sharpener Set

http://amzn.to/2wT36OM

Transfer Paper:

http://amzn.to/2wTkkvD

If any of these links are out of stock you can also check dickblick.com

PS: I get a small commission if you purchase anything from these links. Thanks for your support!