Proofreading and editing entail reviewing written content to correct errors, improve clarity, and enhance overall quality. Here is a breakdown of what each task involves:

1. Proofreading 

   - **Correcting Errors**: This includes fixing spelling, grammar, punctuation, and formatting mistakes.

   - **Consistency**: Ensuring consistent use of language, style, and formatting throughout the document.

   - **Clarity**: Improving sentence structure, word choice, and overall readability.

   - **Accuracy**: Verifying facts, figures, and references for accuracy.

2. **Editing**:

   - **Structural Editing**: Evaluating the overall structure, flow, and organization of the content.

   - **Content Editing**: Ensuring the content is engaging, relevant, and coherent.

   - **Style Editing**: Enhancing the writing style, tone, and voice to suit the intended audience.

   - **Fact-Checking**: Verifying information, sources, and references for accuracy.

   - **Quality Control**: Checking for consistency, logical progression, and adherence to guidelines.

Both proofreading and editing play essential roles in ensuring that written material is polished, error-free, and effectively communicates the intended message to the audience.