The Asian Materials Room, specializing in materials written in Asian and North African languages, was formerly situated in the Tokyo Main Library, but when the Kansai-kan was opened to the public it was transferred to the Kansai-kan with its collection and renamed as the Asian Resources Room.
かつてはアジア・北アフリカ諸国の諸言語資料を専門とするアジア資料室も東京本館に置かれていたが、関西館の開館にともなってその蔵書とともに関西館に移転し、アジア情報室と改称した。