Zhào Jìxù 趙繼序, hào Yìmén 易門, was a Qiánlóng-period Yìjīng scholar from Xiūníng 休寧 (Huīzhōu 徽州, modern Ānhuī 安徽). He passed the jǔrén in Qiánlóng xīnyǒu 乾隆辛酉 = 1741 but did not advance further. The catalog meta records “1741” as the work’s date, which probably refers to his jǔrén year rather than the work’s composition.
His Zhōuyì tú shū zhì yí 周易圖書質疑 (KR1a0161) in twenty-four juàn is methodologically distinctive: it speaks of the Yì through symbol-and-number, but rejects the Chén Tuán / Shào Yōng Hé túLuò shū tradition, holding that “those who made the charts based [their work] on the Yì; later ones turned around and said the Yì was made on the basis of the charts” (作圖者本於易而反謂作易者本於圖). The work is structured as ancient-canon thirteen-chapter exposition, plus 32 charts with appended discussions, plus appendices on the Dàyǎn xiàng shù, Chūnqiū zhuàn lùn Yì, Yì tōng lì shù, Zhōuyì kǎo yì, and guà yáo lèi xiàng. Doctrinally Zhào takes hexagram-variation as the source of symbol, jointly drawing on Hàn and Sòng commentators.