How to write useful and respectful code reviews?

Addy Osmani on Twitter: „Tips for useful, respectful code reviews: – Assume competence (author may have a different context) – Provide specific, actionable feedback – Focus on the code (avoid personal criticism) – Clearly mark nitpicks & optional comments – Provide rationale (e.g refs to a style guide)” / Twitter:

• Assume competence (author may have a different context)
• Provide specific, actionable feedback
• Focus on the code (avoid personal criticism)
• Clearly mark nitpicks & optional comments
• Provide rationale (e.g refs to a style guide)

I like this advice a lot!