I bought a book on amazon a few days ago. Just the right book for me :-) But it turned out to use another kind of crochet language. No single crochets, instead a single crochet is a double crochet and a double crochet is a treble crochet. Confused? I am! Fortunately there is a "how to" chapter in the book, but it is a little confusing anyway.
Anyway, I started out with a "Danish square". Why not. And I renamed it "square 21". What a poor imagination!!