The document discusses cohesion and coherence in writing. It defines cohesion as the connectedness between sentences achieved through word arrangement and transitional phrases. Coherence refers to how well a piece of writing hangs together from beginning to end despite changes in subject. The document provides examples of techniques that improve cohesion, such as using the end of one sentence to set up the beginning of the next. It also discusses ways to improve coherence, such as focusing topics and using pronouns to consolidate subjects. Exercises are included to help writers strengthen cohesion and coherence.