Reddit reviews Mel Bay The Essential Tin Whistle Toolbox

I've heard good things about these books:

1. The Essential Guide To Irish Flute and Tin Whistle
   
   
2. The Essential Tin Whistle Toolbox
   
   Mary Bergin also has a set of books: http://maryberginwhistle.com/tutor.html
   I don't think I've heard anything about the books, but she's a very well respected whistle player.
   
   Depending on how you like to learn, online resources may also serve. There are quite a lot on the sidebar and if you look back through the history of posts in this subreddit. Brother Steve has a lot of great information. It also helps to listen to a lot of the music, and watch videos. See what people do, when they breathe, etc.