简牍 Traditional form: 簡牘 Pinyin (reading): jiǎndú Definitions: bamboo and wooden slips (used for writing on in ancient times) letter; correspondence; book; document Characters: 简 - simple, succinct, terse; a letter 牍 - writing tablet; documents, books Traditional characters: 簡 - simple, succinct, terse; a letter 牘 - writing tablet; documents, books