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When two young Norwegian schoolboys discover a body in a thawing river, a haunting story of long-held family secrets and, ultimately, a type of justice, begins.

I avoid it for the most part, although not for any strategic reason... Although I'm tempted on occasion. I would love to know the stance of others here, their reasons and (for those that work on multiple pieces) experiences.

Sorry if not allowed to start a discussion, but as we approach Christmas, wondered what people write over the holidays?

What textbook or manual has taught you the most about writing, and why?