Many of you asked me what Gamsol is. Well best way to explain it is that it is a thinner for painting. It works with paints, colored pencils and other things I am sure. But, I am using it for colored pencils.
Here is what it is and where to get it if you want some. http://www.dickblick.com/zz004/56j/
It is odorless but still need some kind of ventilation or you can get a little loopy on it. Gave me a small headache without the room being vented. I love using this as it blends the colors so well for coloring in our images. You can see how it is used in these tutorials. She explains and shows you at the same time how to use it.
http://www.heartprints.net/gallery/videos/ Excellent tutorial on Gamsol.
I hope this answers any questions you all had. If not feel free to let me know and I will see if I can find more info on it. This video that Susie has though is what got me to using it. And I just love it.