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You do not have time to read every paper from start to finish, and you were never supposed to. A careful read of a dense paper can take hours, and most of the papers you open do not earn that much of your attention. And the time keeps getting tighter: in surveys of university faculty that go back to 1977, the number of article readings per person kept rising while the average time spent on each reading fell from 48 minutes in 1977 to 31 minutes by 2005[1]. The skill that separates fast readers from slow ones is not raw speed. It is knowing how much of a paper to read, and in what order.
There is a well tested way to do this, and it scales from a single paper to an entire literature review. Here is how it works.
Reading start to finish is the problem
When you read a paper from the first word to the last, you spend your freshest attention on the abstract and your most tired attention on the results. That is backwards. You also commit to the whole paper before you know whether it deserves the time. By the point you reach the part that matters, an hour is gone, and much of that hour went to sections you did not need.
A better approach treats reading as a series of small decisions. At each stage you learn a little more, then decide whether to keep going. Papers that turn out to be irrelevant get set down early. Papers that are central get the deep read they deserve. Your time follows your judgment instead of the order of the pages.
Read in three passes
The computer scientist S. Keshav laid out a method for reading a paper in three passes[2] that has become a standard reference, and it is worth knowing exactly. Each pass goes deeper than the last, and each one ends with a decision about whether to continue.
The first pass is a scan of about five to ten minutes. Read the title, the abstract, and the introduction. Read the section and subsection headings, but not the text under them. Read the conclusion. Glance at the references to see which ones you already recognize. By the end you should be able to say what kind of paper this is, what it claims, and whether it is credible and relevant enough to keep reading. For a large share of the papers you open, this first pass is all you will ever need.
The second pass takes closer to an hour. Read the paper with real attention, but do not get stuck on proofs or the heaviest technical detail. Study the figures, tables, and graphs, because a sloppy figure often gives away a weak result. Experienced readers tend to agree: in a survey of 260 students and researchers in biological sciences at the University of Cambridge, researchers ranked the figures and tables as the most important part of a paper[3], while undergraduates put the abstract first. Note the references you have not read and want to follow up on. After this pass you should understand what the paper does and be able to explain it to a colleague, even if a few steps of the reasoning are still unclear.
The third pass is the deep one, and it is only for papers that are central to your own work. Here you try to rebuild the paper from the ground up: question every assumption, work through the reasoning, and ask what you would have done in the author's place. This can take several hours, and it is how you truly master a paper and notice the flaws that a casual read hides. Most papers never reach this pass, and that is the point.
Decide what deserves a third pass
The method only saves time if you are honest at each decision point. Think of it as a funnel. Many papers get a first pass and a one line note about why you put them down. Fewer earn a second pass because they are both relevant and sound. A small number, the ones your own work rests on, get the third pass.
This triage is the step people skip. Reading everything closely feels responsible, but it is exactly how a literature review swells into a month of work. Choosing not to finish a paper is not laziness. It is how you protect your attention for the papers that have earned it.
Make each pass count twice
A pass you cannot remember later is a pass you will end up repeating. As you read, capture the one or two things you will want again: the claim that matters to you, written in your own words, and the page it sits on. A short note in your own language beats a wall of highlighting[4], because it forces you to decide what the passage actually means before you move on.
This is also where a searchable library earns its keep. If your papers and your notes live in one place, you can return to a specific claim months later without reading the whole paper again. That is the job Researcher+ is built for: you ask a question across the papers in your project and get an answer with the exact source and page, so the second pass you did in March still works for you in June. Whatever tool you use, the principle is the same. Read with a plan to find it again.
None of this replaces your judgment. The three passes are simply a way to spend that judgment well, so the deep reading goes to the papers that deserve it and the rest do not quietly eat your week. Try it on the next paper you open. Give it five minutes, then decide.
Sources
4- [1]Peer reviewed
Tenopir C, King DW, Edwards S, Wu L. Electronic journals and changes in scholarly article seeking and reading patterns. Aslib Proceedings, 2009;61(1), pages 5 to 32.
doi.org/10.1108/00012530910932267Free copy: trace.tennessee.edu
- [2]Journal article
Keshav S. How to Read a Paper. ACM SIGCOMM Computer Communication Review, 2007;37(3).
- [3]Peer reviewed
Hubbard KE, Dunbar SD. Perceptions of scientific research literature and strategies for reading papers depend on academic career stage. PLOS ONE, 2017;12(12):e0189753.
- [4]Researcher+ article
Researcher+. Why Highlighting Fails, and How to Annotate Papers So It Sticks. Researcher+ Blog, July 24, 2026.