2.1 · Writing clearly & concisely (readability)

Level 2 · Professional writing

2.1Writing clearly & concisely (readability)

Goal: Short sentences, simple words, active voice, cutting unnecessary jargon for writing that gets read and understood.
Estimated time: 12 min · self-paced reading · If you only have 5 min: read “The essentials in 30s” + the diagram.

The essentials in 30 seconds

  • Clarity = short sentences + simple words + active voice: three levers that reduce the reader's effort.
  • Full verbs, no nominalizations: "verify" rather than "proceed with the verification".
  • Reflex: one idea per sentence (~15-20 words) + reading aloud before sending.

Running mini-case — Yasmine and the email nobody understands

Yasmine, sales assistant in an SME in Algiers, sends a client: "it is necessary to proceed with the verification of the data before validation can be carried out by the relevant department". The client's reply: "concretely, what do I have to do?". Yasmine understands she did the opposite of her job: it's up to her to make the effort, not the reader. We will rewrite this email with her, sentence by sentence.

This same case runs through the course, the diagram, the script and the 48h challenge — and continues in 2.2, 2.3, 2.4 and 2.5.

1. Clarity, a method more than a gift

Professional writing has one purpose: to be read and understood quickly. Clarity isn't a talent, it's a method: short sentences, simple words, active voice, and cutting jargon and filler.

Writing clearly means doing the work for the reader. Most professional writing suffers from the same flaws: endless sentences, fancy words, negative phrasing, "ghost" verbs.

2. Active voice and full verbs

Active voice ("the team delivered the project") is more direct and clear than passive voice ("the project was delivered by the team"): it immediately names who acts.

Nominalization — turning a verb into a noun ("proceed with the verification" instead of "verify") — needlessly weighs down a sentence. Preferring full verbs makes the text livelier and shorter.

3. One idea, one short sentence

A short sentence ideally carries a single idea, around 15-20 words: beyond that, reading effort rises and ambiguity multiplies. Jargon, specialist vocabulary, should be replaced with simple words when they suffice.

Writing simply is a mark of expertise, not weakness: great communicators make the complex accessible, while jargon and convoluted sentences often mask thinking that is still unclear.

Common misinterpretation: "Writing with sophisticated, complex vocabulary is more impressive — and passive voice sounds more professional." No. A clear, direct text is read to the end and understood the first time; jargon and convoluted sentences often mask thinking that is still fuzzy. And passive voice hides who performs the action: active voice ("the team delivered") names the subject and shortens the sentence.
Three levers of readability Clarity = short sentences + simple words + active voice Short sentences~15-20 words, one idea+Simple wordsLess jargon+Active voiceA subject that acts Reading aloud reveals the sentences to fix.
Clarity = short sentences + simple words + active voice
Text version of the diagram (SEO / screen readers / translation): 1) Short sentences: one idea per sentence, ~15-20 words (Yasmine splits her 30-word sentence in two). 2) Simple words: less jargon, cutting filler phrases ("in the context of", "it should be noted that"). 3) Active voice: a subject that acts ("check the data" rather than "proceed with the verification"). Lesson: doing the work for the reader — writing simply is a mark of expertise.

🔎 Concrete example — Before/after on an administrative sentence

Comparison for the same instruction given to a team.

Before: "It is necessary to proceed with the verification of the data before validation can be carried out by the relevant department."

After: "Check the data before sending it to the department for approval."

Gain: twice as short, a clear active subject, no loss of meaning.

Section vocabulary

Readability
How easily a text is read and understood. It can be measured and improved through simple rules.

Simple example: Yasmine's rewritten email is understood the first time by the client.

What it is not: a pretty font or layout (formatting is not clarity).

Reflex: test every important piece of writing: does a non-specialist understand it the first time?

Active voice
A subject that performs the action ("the team delivered the project"): more direct and clear than passive voice ("the project was delivered by the team").

Simple example: "check the data" rather than "before validation can be carried out".

What it is not: systematic passive voice, which hides who actually performs the action.

Reflex: hunt down "was / will be carried out by" and rewrite with a subject that acts.

Short sentence
Ideally one idea per sentence, ~15-20 words. Reduces reading effort and ambiguity.

Simple example: Yasmine splits her 30-word instruction into two one-idea sentences.

What it is not: stacking several ideas linked by commas into a single sentence.

Reflex: any sentence over 25 words: split it in two.

Jargon
Specialist vocabulary or unnecessary fancy words. Replace with simple words when they suffice.

Simple example: "it should be noted that" deleted from Yasmine's email with no loss of meaning.

What it is not: the precise technical term when no simple word exists (keep that one).

Reflex: faced with a fancy word: "would a simple word say the same thing?".

Nominalization
Turning a verb into a noun ("perform an analysis" instead of "analyze"): needlessly heavy. Prefer verbs.

Simple example: "proceed with the verification" becomes "verify" in Yasmine's email.

What it is not: a real noun for a thing ("the quote", "the invoice") — that's not nominalization.

Reflex: hunt down "-tion" nouns and give the verb back to the sentence.

In practice — Making a text clear and readable

  1. Take a paragraph you wrote. Split every sentence longer than 25 words into two.
  2. Replace fancy words with simple ones and remove filler phrases ("in the context of", "it should be noted that").
  3. Hunt down passive voice and nominalizations: rewrite with an active subject and verbs ("verify" rather than "proceed with the verification").
  4. Read it aloud: wherever you stumble or run out of breath, it's too long or awkward — fix it.
Your writing is direct, simple and active: it gets read all the way through, understood immediately, and projects a professional image.

Ready-to-use script — announcing a plainly rewritten document (30s)

"I'm sending you back the instruction in a short version: one idea per sentence, action verbs, no jargon. Tell me if anything stays unclear — if you understand it the first time, it's good."

Attach to a simplified document: own the rewrite instead of apologizing for "keeping it simple".

Copy-paste template — clarity checklist before sending

TEXT TO CHECK: _______________ | RECIPIENT: _______________
SENTENCES > 25 WORDS (split in two?): [yes / no]
REMAINING PASSIVE VOICE: _______________ → REWRITTEN IN ACTIVE: _______________
"-TION" NOMINALIZATIONS: _______________ → VERBS: _______________
JARGON / FILLER REMOVED: _______________
ALOUD TEST (no stumbling?): [yes / no]

Small business / tight budget

No paid tool: the aloud test + hunting "-tion" words is enough to halve email length.

Algerian SME

Mixed French- and Arabic-speaking clients: prefer simple words and short sentences — they also translate better.

Everyday rush

No time to rewrite everything: at minimum fix the subject, the first sentence (the request) and the action verbs.

High-stakes document

Quote, complaint response: have a non-specialist colleague reread it — if they understand the first time, the client will.

✓ Best practices

  • Aim for one idea per sentence; if a sentence has "and", "but" AND a comma, consider splitting it in two.
  • Systematically hunt down "-tion" nominalizations and replace them with the matching verb.
  • Read important writing aloud before sending: the ear catches what the eye misses.

✗ Common pitfalls

  • Believing that sophisticated or complex vocabulary is more impressive than clear, direct writing.
  • Stacking several ideas into one long sentence linked by commas.
  • Systematically using passive voice, which hides who actually performs the action.

Key takeaways

  • Clarity = short sentences + simple words + active voice.
  • One idea per sentence; cut filler and unnecessary jargon.
  • Prefer verbs over nouns ("analyze" rather than "perform an analysis").
  • Reading aloud reveals the sentences to fix.

48h Challenge — apply tomorrow

Take 1 real email or paragraph, split sentences over 25 words, replace 3 nominalizations with their verbs, and reread aloud. Compare before/after: how many words saved?

Section exit checklist
  • I name the 3 levers of readability without hesitation.
  • I spot a nominalization and rewrite it as a verb.
  • I've done the 48h challenge or scheduled its date.
Self-rating 1-5: do my sentences carry a single idea?do I reread aloud before sending?

Frequently asked questions

Doesn't writing simply make me look less competent?

It's the opposite: clarity is a mark of expertise and respect for the reader. Great communicators make the complex accessible. Jargon and convoluted sentences often mask fuzzy thinking; writing simply forces you to clarify your ideas.

How do I know if my text is clear enough?

Two simple tests: reading aloud (if you run out of breath, the sentence is too long) and the recipient test (does a non-specialist colleague understand your request the first time?). If yes, you've succeeded.

Check your understanding

Yasmine writes: "it is necessary to proceed with the verification of the data". What flaw does this sentence show?

Additional resources (optional, to go further)

Level 2 examFresh, harder questions to test what you've learned