falling in Amazon rankings

One of my new favourite go-to places on the Internet is the Amazon Author Central. For the first time, I can see quickly and easily how my books are ranking on Amazon but Animal hats to knit is falling in the rankings. The competitive part of me cares – why? I don't believe that this book of animal hats has a place but part of the brief was to produce a range of hat shapes, and there are some unusual hats in the book. The good ideas will not be discovered by themselves; I have to tell people. If I keep quiet, I could use the ideas again and make them better. But I won't – I have new ideas to work on. I must decide soon what I want to do with the hats.