This is an exciting announcement from the Dublin 2019 Worldcon:
Best art book will throw up some interesting nominees but I can see a maze of eligibility questions. Dublin says:
“An eligible work includes any art book in the field of science fiction, fantasy, or fandom, appearing for the first time during the previous calendar year or which has been substantially modified during the previous calendar year which isn’t eligible for Best Graphic Story.“
Which is fair enough but Graphic Story has broad eligibility and I don’t think it is clear what kind of thing isn’t eligible (as opposed to what kind of thing doesn’t normally get nominated).
There’s also an obvious overlap with Best Related Work, which has broad eligibility criteria but a narrower range of what usually gets nominated (although it’s had some more left-field finalists in the past).
Still it will be fun to think of nominees!