https://insighteditions.com/products/the-art-and-soul-of-dune-le?fb...

An Instagram post went up a few hours ago showing Josh Brolin signing an artcard that comes included with this limited edition book -- a pricey proposition at $600, but the first "700 copies will feature a signed and numbered signature card, individually inscribed by director Denis Villeneuve, author and executive producer Tanya Lapointe, stars Timothée Chalamet and Josh Brolin, and director of photography Greig Fraser. These copies will be available on a first come, first served basis."

No indication on how many signed copies are left, as of this writing, but for a Dune fan, this might be just up your alley.