Your Top 5!

I love to read and love to learn so I'm always on the hunt for a good book, whether it be fiction, non-fiction, a good mystery or one that helps me to be a better teacher!  There are loads of books out there that give us great pointers on teaching, piano pedagogy and even books that help us set up a studio.  I'm interested to hear what you consider your top 5 to be. 

If you had to choose 5 books that have been the most effective in your teaching or have been the most helpful to you as a piano instructor, which 5 would it be?   I would love to hear what they are and what makes them your top choices.  I will compile the list and post the "winners" next Friday.  I think it will be helpful to all of us!