How to Retain Information While Reading: 7 Techniques Backed by Learning Science

You finish a chapter, close the book and… what was it about again? You’re not alone. Forgetting most of what we read is the default. The good news: retention is a skill, and a few habits make a huge difference.

I’m Aleno Oliveira, and I teach smart reading and self-education. These are the techniques I use myself and teach to my students.

Why we forget what we read

Your brain doesn’t store everything it sees. It keeps what seems important, and it judges importance by what you do with information. If you only move your eyes across the words, the brain treats the text as noise. Worse, re-reading creates an illusion of competence: the text feels familiar, so you think you know it, but recognizing is not the same as remembering.

So the strategy is simple: make your brain work with the information.

7 techniques to remember more of what you read

1. Preview first

Before reading a chapter, skim the headings, summaries and conclusion for a couple of minutes. You create a mental map, and new information has somewhere to attach.

2. Read with a purpose

Ask yourself: why am I reading this? What do I want to be able to do or explain afterwards? A clear purpose tells your brain what to keep.

3. Use the recall habit (the most important one)

At the end of each section, close the book and try to explain what you just read, out loud or on paper, without looking. The effort of retrieving information is what strengthens memory. Research on the testing effect consistently shows that practicing recall beats passive review.

4. Take fewer, better notes

Highlighting everything is almost the same as highlighting nothing. Try this instead:

• Mark only main ideas and things you want to apply.
• Write short notes in your own words in the margin.
• At the end of the chapter, write a three-sentence summary.

5. Space your reviews

Review your notes a day later, then a week later, then a month later. Spaced review fights the forgetting curve with very little time. Tools like Anki or a simple notebook both work.

6. Connect it to what you know

Ask: where have I seen this before? Does it confirm or contradict something I believe? Connections are memory hooks.

7. Teach it or use it

Explain one idea from the book to a friend, write a short post, or apply it at work the same week. Knowledge you use is knowledge you keep.

A simple routine for your next book

1. Before: 2-minute preview of the chapter.
2. During: read with a pen, marking only main ideas.
3. After each section: close the book, recall in 3 sentences.
4. After the chapter: write a short summary.
5. Next day and next week: re-read only your summary.

It adds maybe 10 minutes per chapter, and it changes how much you keep.

Frequently asked questions

Is it better to read slowly to remember more? Not necessarily. Speed has less effect on retention than what you do after reading. A fast read followed by recall usually beats a slow read with no recall.

Does listening to audiobooks work for retention? Yes, if you apply the same habits: pause and recall, take quick notes, review. Passive listening while doing something else tends to leave little behind.

Keep going

If you want to read faster without losing comprehension, see my guide on how to speed read with comprehension. And if you want a guided 21-day plan with daily missions, check out the Smart Reading Challenge.