Yes -- there is a new J.K. Rowling book, but No -- the library will not be getting it **[see below for details of why not].
Rowling has just published The Tales of Beedle the Bard, an illustrated collection of magical fairy stories. This book is mentioned in the final Harry Potter book (Harry Potter and the Deathly Hallows) as a gift left by headmaster Albus Dumbledore to Harry's friend Hermione.
Only seven copies of this handwritten book have been made and they will be auctioned off in December, 2007 to raise money for Children's Voice, a charity that helps children in Europe.
The volume, bound in leather and mounted with silver and semiprecious stones, will be auctioned at Sotheby's with a starting price of **$62,000. Wow!!