Tsao, Hung-ping 曹恆平 (2020). East West Swing Spring. In: “Evolutionary Progress in Science, Technology, Engineering, Arts, and Mathematics (STEAM)”, Wang, Lawrence K. 王抗曝 and Tsao, Hung-ping 曹恆平 (editors). Volume 2, Number 12, December 2020; 151 pages. Lenox Institute Press, Newtonville, NY, 12128-0405, USA. No. STEAM-VOL2-NUM12-DEC2020; ISBN 978-0-9890870-3-2. …………… ABSTRACT: This is a collection of work in three areas: math, ball and poem. The author devoted all his life studying Classic Number Theory, playing basketball and composing poems. In addition to his Math work, Tsao’s corner naratives and spontaneous poems, he also includes his translation of Kay Ryan’s “The Niagara River”to end this collection as a good note. …………… KEYWORDS: Classic number theory, Basketball, Poem, Kay Ryan, The Niagara River.