* Use of Language: Both use language to convey information or ideas. They both employ vocabulary, grammar, and sentence structure to communicate a message. However, the *level* of formality and the *type* of vocabulary will differ substantially.
* Organization of Ideas: Both strive for some level of organization to present their information effectively. They may use headings, subheadings, paragraphs, or other structural elements to guide the reader. Again, the *complexity* and *rigor* of this organization will vary greatly.
* Presentation of Information: Both can present information factually, though the verification and sourcing of that information will differ considerably. Both might include examples, illustrations, or data to support their points.
* Purpose of Communication: At a very basic level, both aim to communicate something to someone. While the *nature* of this communication (persuasion, informing, entertaining) differs, the underlying act of communication is shared.
It's important to note that these similarities are at a high level of abstraction. The differences in style, tone, audience, and purpose are far more significant in defining what constitutes academic versus non-academic writing.