At the moment i'm reading this book.
Although it isn't 'siberian husky specific'
The woman who wrote it bred Alaskan Malamutes.
It's a little bit out-dated, (just under 20 years old) but it's still a good resource to have.
She says things in a real 'matter of fact' way.
I only just found out about 'gaits' .
I have a long way to go!.