How to Write a Good Peer Review
Most researchers get their first review invitation with little formal guidance on how to actually do it well. Given how much strain the review system is under right now, including a real and growing problem with generic, disengaged, or AI-generated reviews at high-volume venues, a thoughtful human review has become more valuable, not less, and developing this skill deliberately benefits both the researchers you review and your own standing in the field.
Read the whole paper before forming a verdict
A review shaped by a strong first impression from the abstract and introduction alone, without genuinely engaging the methodology and results, tends to produce exactly the kind of generic, non-specific feedback authors increasingly find frustrating and hard to act on.
Be specific enough that the author could actually act on it
“The methodology needs more rigor” gives an author nothing to work with. Pointing to the specific section, the specific concern, and ideally a specific suggestion for addressing it is what separates a review that improves a paper from one that just registers disapproval.
Separate the major issues from the minor ones
A long list of undifferentiated comments makes it hard for an author or editor to tell what’s actually decision-relevant. Structuring a review around major concerns that affect the paper’s validity or contribution, followed by minor suggestions, helps everyone downstream prioritize correctly.
Critique the work, not the researcher
Feedback framed around what the paper does or doesn’t demonstrate, rather than what it implies about the author’s competence, is both more professional and generally more accurate, most weaknesses in a paper reflect scope and resource constraints, not a lack of ability.
Provide a clear overall recommendation with reasoning that matches your detailed comments
An overall recommendation, accept, minor revision, major revision, reject, that doesn’t align with the tone and substance of your detailed comments creates confusion for editors and authors alike. Ensure your summary recommendation genuinely reflects the balance of concerns you’ve raised in the detailed review.
Disclose conflicts and decline when you should
A close professional or personal connection to the authors, or a paper genuinely outside your area of expertise, is a reason to decline or disclose to the editor rather than review anyway, a review from someone stretched outside their expertise tends to produce exactly the kind of generic commentary the system is already struggling with.
Manage your time realistically to produce a genuinely thoughtful review
Accepting a review invitation without realistically budgeting sufficient time often results in a rushed, superficial review that provides little genuine value. Being honest with editors about your actual availability, and declining or requesting an extension when genuinely needed, serves the process better than a hasty, low-quality review.
A peer review quality checklist
- The full paper read carefully, not just the abstract and introduction
- Comments specific enough that the author could genuinely act on them
- Major and minor issues clearly distinguished and organized
- Critique focused on the work itself, not implications about the author
- Overall recommendation genuinely consistent with the detailed comments provided
Frequently asked questions
How long should a thorough peer review typically take?
This varies by paper complexity and field, but a genuinely careful review of a typical journal article often takes several hours, not a rushed 20-30 minute skim.
Is it appropriate to recommend rejection while still providing detailed, constructive feedback?
Yes, a rejection recommendation with detailed, substantive reasoning is far more valuable to an author than a vague rejection, helping them genuinely improve the work for future submission elsewhere.
How can I tell if I’m qualified to review a specific paper?
If you can engage substantively with the methodology, key claims, and relevant literature, you’re likely qualified, if the paper falls genuinely outside your area of expertise, it’s appropriate to decline or flag this to the editor.