what are the best resources for learning how to write a fugue?

Answer 1

See if these will help you get started:

http://www.music-web.org/articles/577-how-write-fugue.html

http://www.wikihow.com/Write-a-Fugue

http://en.wikipedia.org/wiki/Fugue

http://www.kunstderfuge.com/theory/smith/anatomy.htm

Musician, composer, teacher.

Answer 2

Writing a successful fugue is very difficult. By all means follow the links above but I would urge you to study Bach's 'Art of Fugue'. He was the best composer of fugues of any time and actually wrote it as a sort of thesis on the technicalities of writing fugues. An understanding of Bach's music in this form is vital.

Good luck!