It's called Savannah and it has a special Creative Grids ruler that is curvy. I did it in a class. It's really easy, and not too scary for beginners. The fun part was that the way they did it at our store was everyone that signed up picked a dark batik and a light batik, when everyone had selected in advance their 2 colors, the shop cut all the pieces into 10" blocks and everyone got a little of everybody's colors. It was really cool, we tried to get people to stick with earth tones but some people weren't having any of that so there were some colors that just popped against the earth tones.