author
A Southern Song poet and critic best known for Canglang Shihua, a compact but influential work on how poetry should sound, feel, and be judged. His ideas helped shape later Chinese literary criticism, especially through his admiration for Tang poetry.

by active 12th century Yu Yan
Little is firmly recorded about this writer beyond the broad outline: he lived in the Southern Song period and is chiefly remembered as a poet and poetry theorist. Library and reference sources identify him as the author of Canglang Shihua (Canglang Poetry Talks), a work that became one of the best-known books of poetic criticism in classical China.
In that book, he argues for a vivid, intuitive kind of poetic achievement rather than poetry built only from bookish learning. He is especially associated with a strong respect for Tang poetry, and later readers returned to his criticism again and again when debating what makes verse memorable, disciplined, and alive.
A reliable portrait was not easy to confirm from the sources available during this search, so none is provided here.