Thanks so much for introducing me to her very impressive perfect square notion; I noticed it scored quite well on customer satisfaction on the Amazon web site. Her personal site
http://www.karenkaybuckley.com mentions that the item has been updated in Nov. of 2015, so this probably explains the price differences on various other sites, including Ebay. Her talent is evident in her samples/patterns shown. Way above my capabilities, but I plan to use the perfect square notion for something far simpler.