Available in Bookstores Today 9/12/17: Dark Horse

The animated science-fiction adventures seen in Rick and Mortyare irreverent, shocking, and hilarious. From the cynical and rapid-fire one-liners to the grotesque and endearing character designs. Now, take a deep transdimensional dive into the creation of these many insane universes with The Art of Rick and Morty!
* Includes special glow-in-the-dark cover
* Exclusive never-before-seen concept art from the making of the hit animated series!
But it here.
"There are also other characters that come and go (also owned by the Warner Bros. Discovery conglomerate media company)."
Huh. Is that just referring to other characters from the show itself, or is this implying that the new season is going to have cameos from other WBD IPs