HaikaraWalker

HaikaraWalker (ハイカラウォーカー Haikara Uōkā, "Inkopolis Walker") is a book of official art from 's Octo Expansion, released in Japan on 2018-12-28. It contains 272 pages and is modeled after a fashion magazine appearing in-game on the Deepsea Metro.

The book contains various artworks and design documents from both Octo Expansion and the main game, including two storyboard-style manga, details about fashion designer Toni Kensa, an interview with (fictional) graffiti artists, an interview with the developers about Squid Beatz 2, and information about bands such as Chirpy Chips and Squid Squad.

It is published by Kadokawa Dwango and is sold for 2,200 yen plus tax.