How To Condense Information

Condense Information

Pareto Principle or the 80/20 rule by economist Vilfredo Pareto who states that, for many events, roughly 80% of the effects come from 20% of the causes.

With the same principle, 20% of the words in the book are called the keyword (nouns, verbs, adverbs, adjective) which give 100% of the meaning. The 80% non-keywords which contain 0% of the meaning. Non-keywords are the connecting words used to connect the keywords together.

Next, some of us might be thinking what in nouns, verbs, adverbs, and adjective? Below is the definition extract from


all nouns can be classified into two groups of nouns. A common noun refers to a word that names a person, place, thing, idea, action or quality. Proper nouns refer to the individual name of a person, place or thing. Example of the common noun is such as paperclip, sunlight, house, bird, milk, rain, jumping and swimming. An example of proper nouns is such as Disneyland, Japan, Bryan, and Starbucks.

You can download more examples of nouns in pdf from your here.


a word used to describe an action, state, or occurrence, and forming the main part of the predicate of a sentence, such as hear, become, happen.

Example of verbs are such as agree, climb, walk and read.

  • Will you help me with my homework?
  • He bought a new car
  • We ate lunch then walked around the mall.

More example can be found here.


a word that describes, identifies or further defines a noun or a pronoun. Examples such as bitter, delicious, sharp, hot, quiet, whispering, pinkish, blue, thin, small, flat, wide, daily, speedy, multiple, full, faithful, proud, helpful, wild, weird, colorful, creepy, rainy and aspiring.

More example can be found here.


a word or phrase that modifies the meaning of an adjective, verb, or another adverb, expressing manner, place, time, or degree (e.g. gently, here, now, very ). Some adverbs, for example, sentence adverbs, can also be used to modify whole sentences. Example is such as financially, quickly, randomly, cheerfully, somewhere, outside, now, yesterday, very and almost.

I really love her

You simply don’t understand

I absolutely sure about the topic

I somewhat understand what you are expressing

More example can be found here.

Steps to Condense Information

  • For the first time, read 100% of the book to understand it.
  • Identify the keywords and write down a summary of it with all the keywords. (Suggestion: you can do this by chapter)

Next time, when you want to recall a certain chapter or do revision, you can just read the condensed summary. It will definitely save your time than reading 100% of the book again where 80% of the words have no meaning.

Below is the source of How to Condense Information by Adam Khoo where I learned the skill.

Next is my example of condensing information, so it is easier for you guys to visualize and understand.

Original Content

What Does It Mean to Be an Introvert?

Everyone is born with an innate temperament—a way that you gain energy and prefer to interact with the world. Introversion and extroversion are temperaments. Whether you’re an introvert or extrovert is largely determined by your genes and how your nervous system is wired, although it’s also shaped by early life experiences. About 30-50 percent of the population is thought to be introverts.

Not all introverts are the same. Some introverts will need only a little bit of alone time to recharge and can handle a fair amount of social time before they get tired. Others get worn out quickly and prefer to spend very long periods alone. It’s different for each person, and many introverts are somewhere in the middle.

Sooner or later, however, all introverts will experience the dreaded “introvert hangover,” which is the feeling of being completely wiped out from too many people or too much stimulation. This can mean feeling fatigued, unable to concentrate, or even grouchy. It’s as if your brain has used up all its mental energy and just doesn’t haven’t any left. (And, in fact, that’s exactly what happened.)

The result is that most introverts share certain characteristics:

  • We’d rather stay home most nights than go out to one social event after another.
  • We enjoy quiet, solitary activities like reading, writing, or drawing.
  • We prefer the company of a few close friends over a wild party.
  • We do our best work alone.
  • Many of us will avoid small talk or other unnecessary social interactions.

Total 251 words

Source: IntrovertDear

Condensed Content

Everyone born with innate temperament (Introversion, extroversion) — the way you gain energy, prefer to interact with the world. Largely determined by genes, how the nervous system wired, shaped by early life experiences. 30-50 percent population.

Some introverts need little bit alone time recharge, handle fair amount social time before getting tired. Others worn out quickly, prefer to spend very long periods alone. Many introverts somewhere middle.

“Introvert Hangover” feeling completely wiped out from too many people, too much stimulation. Feeling fatigued, unable to concentrate, grouchy. brain used up all mental energy.

Most introverts’ characteristics:

  • Stay home most nights than go out one social event after another.
  • Enjoy quiet, solitary activities reading, writing, drawing.
  • Prefer company few close friends over wild party.
  • Do our best work alone.
  • Avoid small talk, unnecessary social interactions.

Total 126 words (50% reduction)