Does Speed Reading Work? What the Evidence Actually Says

Partly. You can move through text faster than your normal pace, but past a certain point you understand and remember less of it. No method has been shown to double or triple reading speed while keeping comprehension at the level of careful reading. What the research does support is less dramatic: skimming when the gist is enough, slow gains from practice and vocabulary, and tools that help you hold a steady pace and stay focused.

What does the research say about speed reading?

The most thorough assessment is a 2016 review in Psychological Science in the Public Interest by Keith Rayner, Elizabeth Schotter, Michael Masson, Mary Potter and Rebecca Treiman, five researchers who between them spent decades studying eye movements, word recognition and comprehension. Its conclusions can be put in four points:

• Speed and accuracy trade off. As in most skills, going faster costs accuracy. The authors judge it unlikely that a reader could go from about 250 words per minute to 500 or 750 and still understand the text as well.
• The eyes are not the bottleneck. Reading speed is limited mainly by how fast you recognise words and build the meaning of sentences, not by how fast your eyes move or how much you can see.
• People who appear to speed read are mostly skimming. They often know the subject well already, and they do poorly on details when tested on unfamiliar material.
• Language skill is what makes readers fast. Practice at reading for comprehension, a larger vocabulary and background knowledge are what the fastest good readers have in common.

There is no technique that lets you read much faster and understand just as much. There are sensible ways to choose how much understanding you need and to read accordingly.

How fast do people really read?

A meta-analysis by Marc Brysbaert (2019), covering 190 studies and 18,573 participants, puts average adult silent reading in English at about 238 words per minute for non-fiction and 260 for fiction. Rayner and colleagues give 200 to 400 words per minute as the usual range for educated adults who read well. Details and a way to measure your own rate are in average reading speed.

Against those numbers, a promise of 1,000 words per minute means four times the average. That is the scale of claim the evidence does not support.

Speed-reading claims compared with the evidence

Why can't you read 1,000 words a minute with full comprehension?

Three facts about reading set the ceiling. They are explained at more length in how your eyes move when you read.

1. You can only identify a little text at a time. On each eye stop you recognise the word you are looking at and sometimes a short word or two after it. Reading a whole line or a whole page in one look is beyond what the visual system and attention can do.
2. Moving the eyes is cheap. A jump between words takes a few hundredths of a second; the stop that follows takes about a quarter of a second. Removing the jumps, as RSVP does, saves about a tenth of the time. The rest is thinking.
3. Understanding takes time. Each word has to be recognised, fitted into the sentence and connected to what came before. Readers slow down, and sometimes look back, exactly where that work is hardest. That is why eliminating regressions or subvocalization backfires.

The studies of trained speed readers fit this picture. In one comparison described in the 2016 review, graduates of a speed-reading course read at about 600 to 700 words per minute. They grasped the general gist better than untrained people who were asked to skim, but not better than people reading at a normal 250 words per minute, and on details they did no better than the skimmers. In another, two course graduates went through a textbook at a claimed rate of more than 15,000 words per minute and then showed poor comprehension.

What about PhotoReading?

PhotoReading claims that you can take in a page in a second or two in a relaxed state, at 25,000 words per minute, and draw on the content later. The one independent test we could find is a report for NASA's Ames Research Center by the psychologist Danielle McNamara. She took the PhotoReading course herself, then she and an expert PhotoReader took parallel versions of two standardised and three purpose-built comprehension tests, reading normally for one version and PhotoReading for the other. No measure showed an advantage for PhotoReading. Reading rates were about the same as normal reading, and the expert generally spent longer with the technique and understood less.

It was a small, preliminary study with two readers, so it cannot settle every question. But it is the available evidence, and it points one way.

What does work for reading faster?

• Skimming on purpose. When you need the gist, read headings, opening sentences and key terms, and skip the rest knowingly. This is the largest legitimate time saving on offer. See skimming vs scanning.
• Reading more. Practice at reading for comprehension improves it, slowly. Words you meet often become faster to recognise.
• Vocabulary and background knowledge. Knowing the terms and the subject lets you recognise and predict words quickly. This is why experts read in their own field faster than anyone else.
• Matching speed to purpose. Decide before you start whether you need the details. Go quickly over familiar ground and slow down deliberately where the text is dense.
• Pacing and focus aids. A pacer or a paced reader will not raise your ceiling, but a steady tempo can keep your attention on the page and help you get through a backlog at a moderate, comfortable speed. This is a practical benefit rather than a research-proven one.

The step-by-step version is in how to read faster.

How to test this on yourself in 15 minutes

You do not have to take the trade-off on trust. You can measure it.

1. Choose a long article on a subject you know moderately well and split it into three sections of roughly equal length.
2. Read the first section at your normal pace. Time it, then look away and write down the main points for two minutes.
3. Read the second section in a paced reader set 100 WPM above your normal rate. If you do not know your rate, use 250 WPM as normal and 350 as the faster setting. Write down the main points again.
4. Read the third section at double your normal rate, about 500 WPM, and do the same.
5. Check each set of notes against the text. Count the main points you got right and the details you missed or got wrong.

The research predicts that the moderate setting will cost you little on easy text and that the doubled setting will lose detail quickly. Your own result tells you where your useful range is for that kind of material. Repeat it with a harder text and the range will be narrower.

So is speed reading worth learning?

It depends on what you mean by it. If you mean a course that promises triple speed with full understanding, no. If you mean getting better at choosing how to read each thing (skim this, read that properly, pace yourself through the pile in between) then yes, and that skill is learnable. Tachi is built on that second meaning; its drills and reader are practice tools for focus and pacing, and how Tachi works says plainly which parts research supports and which it does not. Short answers to related questions are in the FAQ.