To omak....you don't actually sew the hexagons together. You fist make "half hexagons" Once you sew all the halves together you start laying them out in rows, so there is no inset seam. There is alot to the placement, looking, moving, organizing the color. I put mine on the back of a vinyl tablecloth and waited until I was sure of the placement...even now there are a few I would tweak if it wasn't sewn together. Taking a photo of it helps also, identifies those "sore thumb" blocks!