Granny Squares Galore

Having chosen nine different colors of yarn that roughly mirror the colors in the painting previously posted here, granny squares are being crocheted.

This free pattern for a granny square afghan requires 30 granny squares with dimensions of 9" x 9". So far, I have 14 finished.

A few pictures of some completed crocheted squares:

Then the question of how to join them together comes up. How to do this?

Mikey knows! (method 1, the single crochet, is the favored method):

saga to be continued of Granny Squares Galore...