This document provides an overview of the second lesson of an Arabic language course. It introduces the letters Bā', Tā', and Thā' including their place of articulation, diacritic marks, vocabulary, writing practice, and grammar. Key information about each letter is given such as sounding like the 'b' in 'baby' for Bā'. Example words are provided to demonstrate writing and pronunciation. The lesson concludes with a review of letter formation based on position in a word.