Lù Yǒu 陸友 (also called Lù Yǒurén 陸友仁; fl. 1330–1333; CBDB id 108365), self-styled Yánběishēng 研北生 (“the one north of the inkstone” — from Duàn Chéngshì’s Hànshàng tíjīn jí), was a Yuán-period bibliophile, calligrapher, and connoisseur of Wújùn (Sūzhōu). His one major surviving work is the Yán běi zá zhì 研北雜志 (KR3j0143) in 2 juàn, a zá zhì (miscellaneous record) of bibliographic-and-connoisseurial yí wén (remaining hearings). He also composed the Mò shǐ 墨史 (ink history; in Sìkù) and is associated with the Yán shǐ (inkstone history) and Yìn shǐ (seal history) — though Xú Xiǎn’s Bài zhuàn records the Yán shǐ, Mò shǐ, and Yìn shǐ as Lù’s three works without recording the Yán běi zá zhì. Lù preserved 吾丘衍 (Wúqiū Yǎn)‘s draft Xián jū lù (KR3j0145) — Wúqiū’s cóngfù family copy passed to Lù, who arranged and transmitted it. Lù was particularly expert in zhuànlì (seal-and-clerical) calligraphy. The book contains substantial kǎozhèng on calligraphy, painting, and antiquities.