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Sonic the Hedgehog Material Collection (設定資料集 Settei shiryōshū?) is an art book given to members at Sega privately in the late 1990's before the final days of completion of the very first Sonic the Hedgehog game. The book features illustrated concept art of in-game development. Characters in concept illustrations include Sonic, Dr. Eggman, animal friends and small amount of Badniks.

In the community, the art book was scanned and shared to the community by game designer and former Sega employee Tom Payne during his interview in SageXPO 2009.