Conjunct adverbial usage is essential for summarizing content. This can be done by connecting two independent clauses with a conjunct adverb, such as however, therefore, and hence. This allows for a succinct, cohesive summary that emphasizes the main points of the content. Additionally, it allows for the author to draw a logical conclusion or provide a call to action. Therefore, a summary with conjunct adverbial usage provides a concise, informative overview of the content.