Splatoon 3 has revealed a 400-page art book as well as a new "Splatune 3" soundtrack with four CDs.
Splatoon - Wikipedia
From the Starfish Mainstage page in the Splatoon 2 art book: what if this band shows up in Splatoon 3? : r/splatoon
Splatune (Splatoon Original Soundtrack) - Inkipedia, the Splatoon wiki
Japan: New Splatoon 3 art book coming in March and official soundtrack in April - My Nintendo News
Ask the Developer Vol. 7, Splatoon 3 – Chapter 3, News
スプラトゥーン3 イカすアートブック: 9784047336551: splatoon3: Books
This Splatoon 3 Complete Guide by Kadokawa is an essential resource for any fan of the game. It provides comprehensive coverage of all the latest features, strategies, and tips. Get up to speed quickly and take your skills to the next level with this guide!.
スプラトゥーン3 ザ・コンプリートガイド [Book]
Japan: New Splatoon 3 art book coming in March and official soundtrack in April - My Nintendo News
Weekly Famitsu NO.1762 2022 9/22 - Japanese Game Magazine - Splatoon 3
Splatoon 3 Ikasu Art Book Limited bonus set
News (Japan-related) アーカイブ - Page 22 of 74 - AUTOMATON WEST
The Octo expansion artbook (Hikari walker) shows off the Album of a Cuddlefish Pop Duo who hosted Inkopolis news before the Squid Sisters. : r/ splatoon