Liú Yánshì 劉延世 (fl. late Shàoshèng — Yuánfú, c. 1094–1100). Native of Línjiāng 臨江 (modern Jiāngxī). Son of the magistrate (zhīxiàn) of Chángtīng 長汀 in Tīngzhōu 汀州 (modern Fújiàn) under the Shàoshèng reign-era. When the demoted Yuányòu-faction official Sūn Shēng 孫升 (1038–1099) was exiled to Tīngzhōu in 1094, Liú Yánshì — through his father’s local position — gained access to Sūn’s company and recorded his table-talk over the years 1094–1099, producing the KR3l0039 Sūngōng tánpǔ 孫公談圃 in 3 juàn. CBDB id 20440 records the name without lifedates or career detail; no other work is attested under his name. He is therefore known solely as a compiler.