Based on the latest teaching techniques, Yall? is a comprehensive introduction to Modern Standard Arabic (MSA), helping students to acquire fluency and accuracy in the language. It is split into two volumes that support students as they advance through their understanding: the first for beginners, and the second for intermediate learners. The textbook focuses on the four major language skills - reading, listening, writing, and speaking - and emphasizes the development of effective learning strategies. Each chapter includes a wide selection of materials that introduce new vocabulary and grammar structures whilst reinforcing previous material. Communication-oriented activities such as role-playing and interviews enable accurate and productive language use, while writing is presented systematically and reflects real-life communication. Each volume also includes a grammar reference section, which makes assimilation easier by drawing on common points between the student's knowledge of English and of Arabic.