Douglas Mclaughlin
Douglas Mclaughlin asked Elliott Kay:

Thank you for actually replying to me! Never expected an author I like to do that. I do have a question. Do you allow people to write fanfiction about your books or draw art?

Elliott Kay Hi! Happy to answer--in fact I only got a push email from Goodreads on this just now. I don't check the site often, sorry.
I don't think of fanfic or fan art as something an author can allow or disallow. While I side-eye the whole "the fans own this now!" stuff I see from some corners, that's not to say a creator gets to decide how fans react or what they do with something.
On a more personal note, I absolutely LOVE fanfic--but am unlikely to read fanfic of my own stuff for reasons other writers have delved into before. You run the risk of cross-pollinating ideas and questions of credit due if things are similar and that gets messy. Best if I don't get involved. But I wholly support fanfic in general.
AND I LOVE FAN ART SO MUCH AND ZOMG I WOULD BE THRILLED IF I EVER SAW FAN ART FROM MY BOOKS.

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