Zhang Ruitu's "Poems in Running Script" exemplifies the literati tradition of calligraphy as a primary art form during the Ming dynasty. Executed in ink on paper as a hanging scroll, the work showcases the artist's mastery of running script, a fluid style that balances spontaneity with control and reflects the intellectual and aesthetic values of scholar officials. The dynamic brushwork and compositional rhythm of the characters demonstrate Zhang Ruitu's accomplished technique and his contribution to the development of calligraphic expression in his era.