1.6. The most-widely accepted classification of Azerbaijani dialects developed by Shiraliyev, divides them into four categories: Eastern: Guba, Baku, Shamakhy, Mugan, Lankaran; Western: Gazakh, Garabagh, Ganja, Airym; Northern: Shaki, Zagatala-Gakh; Southern: Nakhchivan, Ordubad, Tabriz, Yerevan.