“Thiên Nam ngữ lục” (The Versified Chronicles of the Southern Realm) is a remarkable literary work that emerged around the late seventeenth century, during a period of vigorous development in Vietnamese literature in general and Nôm literature in particular. It is the largest known work written in Nôm, consisting of 8,136 lines of lục bát verse (six–eight syllable couplets), interspersed with 31 poems in Classical Chinese and two additional Nôm poems written in the seven-character regulated verse form. Researcher Nguyễn Thị Lâm carefully re-examined the old romanized transcription, comparing it with extant Nôm manuscripts, correcting inadequate transcriptions, and adding necessary annotations and textual variants to provide readers with a newly edited, annotated, and critically reviewed version of Thiên Nam ngữ lục. In addition to the three Nôm manuscripts previously studied and introduced by Professors Nguyễn Lương Ngọc and Đinh Gia Khánh, Nguyễn Thị Lâm introduced three more versions and conducted comparative analysis on all six. She made over 400 transcription corrections, revised nearly 50 annotations, added about 130 new notes, and compiled new indices of personal and place names appearing in the text.