Expository

1. Expository* mode of presentation: 

• prioritizing evidence and logic, separating facts and opinions;
• attempt to show subjective or even objective truth, explaining a concept, discourse to convey knowledge;
• using images to advance the argument, evidentiary editing, conceptualism, ideas over aesthetics;
• formal academic, business, technical, or scientific writing, argumentative speech or essay, monologue, tutorial, news story, review.
  Exposition (setting forth of the meaning or purpose) sub-modes:
  
  1. Rhetoric: persuasion, reasoning, justification, warrant, strong argument and point of view;
  2. Analysis: relationships of ideas or parts, possible situations, alternative responses, systemic analysis, comparison, gaining insight;
  3. Critique: evaluation of  worth or significance, questioning, methodical doubt with recognition of merit, judgement according to a set of standards, commentary, formal criticism, identifying possible desirable changes, implications and solutions, conclusions, and recommendations.

* Expository mode can mean almost the opposite under different approaches, I found. I went with a sort of evidence-based persuasion, also because it is almost impossible to produce a purely factual all-encompassing opinion-less non-bias creation.