"A Tunes" on Amazon

I can't believe I'm posting this, but, since I am engaging in commerce with this educational opus, I'm pleased to say that "A Tunes" has made it into the vast (and reviewable) world of Amazon. You can see the entry in all its "prime" glory, with a "look-inside" feature here.

It also has a ranking (which I hope will go up one of these days). Bear in mind that this is day one for this listing.

I hope that people familiar with my work will leave a comment!