Tutorials

I found a good tutorial on creating fibonacci patterns:

grasshopper3d "Generative Algorithms with Grasshopper" p25.
http://s3.amazonaws.com/mcneel/grasshopper/1.0/docs/en/Generative%20Algorithms.pdf

list management

Making connections - using the edgesurface tool to create a surface between three lines.

Creating polylines - using points to create a 2d polyline.