"Star Wars: Episode IX" doesn't arrive until 2019, but "Jurassic World" director Colin Trevorrow is already hitting the books -- or, at least, book.

The filmmaker tweeted a photo of an official Lucasfilm notebook, accompanied by the words, "Back to school."

Trevorrow, who broke out in 2012 with the indie film "Safety Not Guaranteed," was confirmed last month at the D23 Expo as the director of "Episode IX." He explained at the time that his "Star Wars" gig isn't “a job or an assignment. It is a seat at a campfire, surrounded by an extraordinary group of storytellers, filmmakers, artists and craftspeople."

Although it will be some time before "Episode IX" begins production, Trevorrow is already collaborating with the other "Star Wars" directors and production teams.

Directed by J.J. Abrams, "Star Wars: The Force Awakens" opens in December. Rian Johnson's "Episode VIII" will arrive in December 2017.