Spelling, punctuation, grammar, dealing with dates, logical flow of the content, maintaining the style throughout, etc.
Explanation:
Spelling:
The most important challenge that it has be considered seriously while proof reading. Misspelling of words may sometimes lead to false understanding of a sentence. If spellings are wrong it implies that the contents are not worthy.
Punctuation:
- Necessary to get proper meaning
- Makes document reader-friendly
Grammar:
- This is an highlight of the content
- Mandatory to follow good grammar
Logical flow:
- To understand the meaning
- To connect and understand the writer's point of view clearly
