A Goodreads user asked:

I have a question about the acknowledgements. What does IYDIGKM mean?

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Heather Mulcahy I assumed it was " if you die I'm gonna kill myself"

Nya I’m guessing it’s a inside joke between the author and her husband, I tried googling and it’s not a common abbreviated meaning.

Jamie IYDIGKM = If you don’t I’m gonna kill myself

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