Adult colouring books are all the rage in 2016, and there are about to be a few more geek-friendly arty tomes on the market.
Cult TV fans will be able to put pencils to paper as editions for hit series Buffy The Vampire Slayer and Star Trek have been revealed.
The company behind the new books, Dark Horse Comics, shared the news on Twitter with preview covers for two separate Star Trek issues.
Going on sale on October 19, the first is called Star Trek: The Original Series Adult Colouring Book, and will allow those so inclined to add colour to bare portraits of the original Enterprise crew.
The second - Star Trek: The Next Generation Adult Colouring Book - focuses on Captain Picard and the USS Enterprise gang.
And for those who are more into monsters instead of sci-fi antics, there will also be a Buffy The Vampire Slayer release, filled with page upon page of original artwork of the characters from comic book artists Karl Moline, Georges Jeanty and Rebekah Isaacs.
There will be 45 images in total for fans of Joss Whedon's hit series, which starred Sarah Michelle Gellar in the leading role from 1997 to 2003.
The Buffy book will be available to buy in January next year.
Dark Horse Comics are also behind colouring books for TV series Serenity and Avatar: The Last Airbender.