I agree with both Gai and Woody! Actually it depends if you think you'll prefer hexes and cubes or you might like to try the octogans as well. But whatever, you can't do these well without a book. All the free tutes and stuff are inadequate and doesn't go far enough with the design advice which is the main issue with these - the piecing is pretty straight forward. I have however done a You Tube tute myself on joining the rows and my persnickety way to match the points and press open seams but this is an ADDITION to the book NOT a replacement for it by any means.