This is Book 2A of the third edition, including a total of 12 lessons. It follows Book 1B and comes to the stage of grammar and sentence patterns. Each lesson basically consists of five sections: text, new words, notes, phonetics/grammar, and exercises. The texts are mostly practical conversations; they are where grammar and vocabulary are used. The new words are all common words. The exercises come in diverse types, including comprehension, imitation, communication, etc.