The first two ideas are flow structures and the role of charts. The first concerns flow structures. There are sixteen different flow structures listed in the book. The flow structures are: modular, chronological, physical, spatial, problem/solution, issues/actions, opportunity/leverage, form/function, characteristics/benefits, case study, argument/error, comparison/contrast, matrix, parallel tracks, rhetoric. question and digital. The book states, “You can use these flow structures to group your clusters in a logical progression, making it easy for your audience to follow your presentation and build your presentation” (p. 43). Some flow structures that I think are important are: Timeline, Problem/Solution, Features/Benefits, and Matrix. Chronological uses organized groups of ideas that follow a timeline, problem/solution organizes a presentation around a problem and the solution provided, features/benefits organizes a presentation around the product features and the benefits the features provide, and Finally, the matrix method uses a two-by-two diagram method to organize a complex set of concepts in a simplified form. Flow structures work for all types of situations a presenter might find themselves in during a presentation. The next important idea discussed in the book is the role of graphics. Charts provide visual aid in a presentation that helps