Gilmore David Chandler. A Grammar of the Sgaw Karen

Rangoon: American baptist mission press, 1898. — 62 p.Karenic can be divided into Southern Karen, mainly Pwo to the south and Sgaw to the north, mainly in the Karen State of Burma and known as Kayin in Burmese and
Kariang in Thai; Central Karen, known as Kayah in Burmese and generally as Bwe in Karen, mainly in the Kayah State of Burma; and Northern Karen, including Pa-O (formerly Taungthu in Burmese and still Tawngsu in Thai) and Kayan (formerly Padaung in Burmese), mainly in the Shan State of Burma but some also further south.
This grammar was one of the first contributions to the study of the Sgaw Karen language and, as stated in its preface: the book here offered students of Karen does not pretend to be an exhaustive grammar of the language. The author's aim has been to introduce beginners to the principles of Karen grammar. He has not attempted to account for every idiom of the Karen language; still less has he aimed to do the work of a lexicographer.