Mu Zhai is an author engaged in the study and popularization of classical Chinese poetry; public information about him is limited, and his dates of birth and death, native place, and educational background are not clearly recorded. One work by him is held in the collection, Gu Shi Yi Ping (Translations and Commentary on Classical Poems). Judging from the title and its classification, the book addresses general readers and introduces classical poems through a combination of translation, annotation, and critical commentary: it clarifies wording and explains allusions and background, while also interpreting the meaning, structure, and artistic features of the poems, balancing readability with scholarly care. Such an approach requires the author to be familiar with the textures of the original language and to translate the ancient context into terms modern readers can understand, which gives the work practical value among introductory books on poetry. Because only this one work is currently available, his overall style and scholarly orientation are hard to assess fully, but it can be inferred that he concentrates on close reading and interpretation of classical poetry, helping readers understand both poetic meaning and poetic craft rather than merely presenting background or appreciation.