Wow, these joins are so pretty! Will have to try these out in future granny square blankets. The one I made for myself and the 2 I made for my daughters were all joined with the "single crochet" method, simply because thats all I knew how to do at the time.
Above are the blankets I made for myself (left), Daughter1 (middle) and Daughter2 (right) All joined with the single crochet method. Looking forward to trying out some of the more interesting joins in the post below!