I use the anti-coloring books in my classes (K-7) at times and I like
them. I mostly use them with younger children. I like to use the
Master's and after the students have had a try at completing the
picture, we put them all on the wall and them bring out a print of the
way the artist completed it! We then look for similarities and
differences. I don't talk about whether the students "got it right",
but that we all have our own ideas.