Peer Review

How does peer review work?

In short

Peer review is the evaluation of a paper by experts in its field. The process: submission → editor desk check → reviewer assignment → reviewer reports → editor decision (accept / revise / reject). The most common types are single-blind (reviewer knows the author) and double-blind (both sides anonymous). Total time ranges from weeks to months depending on the journal. Reviewers look at novelty, methods, literature and whether conclusions are supported.

Peer review is the quality filter of scholarly publishing: your paper is evaluated by experts in its field, and only if it passes that filter is it published. Understanding the process manages your expectations and helps you see why a paper might be rejected in advance. Here is how it works, step by step.

The process step by step

  1. Submission — you upload the paper to the journal system (main text, figures, cover letter, statements).
  2. Editor desk check (desk check) — the editor checks scope fit, formatting, language and ethics. If screened out here, you get a desk reject (without ever going to reviewers).
  3. Reviewer assignment — the editor invites 2–3 (sometimes more) reviewers from the field. Finding reviewers can take days/weeks.
  4. Evaluation — reviewers read the paper and write reports; strengths, weaknesses and suggestions.
  5. Editor decision — once reports arrive, the editor decides: accept / minor revision / major revision / reject — some journals also issue a reject and resubmit decision.
  6. Revision rounds — if revision is requested, you send the corrections with a response-to-reviewers letter; the process can take one or several rounds.

Types of review

Type Author visible? Reviewer visible?
Single-blind Yes (reviewer knows) No
Double-blind No (anonymous) No (anonymous)
Open review Yes Yes (reports may be published)

If you submit to a double-blind journal, remember to remove author information from the manuscript and file properties — otherwise you risk a desk reject.

Typical timelines and what's assessed

Timing varies by journal and field: the first decision can take a few weeks to a few months; with revisions, the whole process can run for months. Meanwhile you can track which stage your paper is in from the status codes ("With Editor", "Under Review", etc.) in the submission system. The main things reviewers focus on:

Turning the process to your advantage

Instead of treating peer review as a black box, if you answer the reviewer's questions before submission you shorten the rounds and lower the rejection risk. Peerfect's free pre-review engine does exactly that: it screens your paper through an editor's and reviewer's eyes in advance, shows the weak points, and recommends fitting journals. If knowing the process is half the battle, entering it prepared is the other half.

Frequently Asked Questions

How long does peer review take?

It varies widely by journal and field; the first decision typically takes from a few weeks to a few months. With revision rounds, the whole process can take months. Some journals publish their average decision times; checking this before submitting manages your expectations.

What's the difference between single-blind and double-blind review?

In single-blind, reviewers know who the author is but the author doesn't know the reviewers. In double-blind, both sides are anonymous, so you must remove author information from the manuscript. In open review, the parties know each other and reports may be published.

What do reviewers look at?

Usually novelty and contribution, the soundness and reproducibility of the methods, adequacy of the literature, whether conclusions are supported by the data, and clarity of presentation (language, structure, figures). The editor also checks scope fit and journal standards.

What does the editor's decision mean?

Typical decisions: accept (rarely on the first round), minor revision (small fixes), major revision (significant changes + re-review), and reject. A major revision isn't bad news — it means the paper is taken seriously and may be close to acceptance.

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