The following aids to vocabulary building are included: A box or boxes indicating the formation of the new word in each unit. A word formation chart containing the four common from classes (nouns, verbs, adjectives, and adverbs) for the already introduced words. A list of the most common Latin, Greek, and English prefixes with examples. Spelling rules, divided into two sections: general spelling rules that can be applied in most cases and sprecific sprelling rules...(Önsöz’den)