what are some tools authors use to connect ideas in narrative nonfiction?

The writer’s overall purpose determines the techniques he or she uses. The writer’s reason for writing a particular article or book may be manipulative, as in propaganda or advertising, or may be more straightforward, as in informative writing. In either case, understanding the writer’s underlying purpose will help you interpret the context of the writing. It will also help you see why writers make the decisions they do—from the largest decisions about what information to present to the smallest details of what words to use. The chapter concludes with instructions on how to write an analysis of purpose and technique. This kind of rhetorical analysis will provide the perspective required to keep you from being pushed by words in directions you don’t want to go. 

Speech is the way to go and something u think about given