Considering that there have been slight incursions into mixing Sake and craft beer, it is probably high time to learn more about the Japanese spirit, and Sake-Pedia from Jeff Cioletti looks to be a good place to start.
Cioletti is an International Kikisake-shi, think Cicerone or Sommelier but for Sake, and his goal with the book is to take Sake from misunderstood to enjoyed.