S3 — Writing Style Guide

Writing Style

Craft, mechanics, and content types. Every rule in this guide exists because writing needs to be on-brand too

Goals

The standard

Every piece of content Latency publishes does one of two things: it narrows the gap between a professional and the private market intelligence they need, or it earns the trust required to make that happen. There is no third category.

Pre-publication checklist

Run every piece through these five questions before it goes live or gets sent. All five must be yes.

  • Does the first sentence earn the second? (Sharp)
  • Is every factual claim specific and sourceable? (Authoritative)
  • Are product names, figures, and technical terms used exactly as defined? (Precise)
  • Is the main point in the first paragraph, not the last? (Direct)
  • Does the piece contain any word from the Forbidden Terms list? If yes, it goes back.

1 — Grammar & mechanics

The rules that don't move

Active voice

Lead with the subject doing the action. Passive voice is permitted in exactly two cases: when the subject is genuinely unknown ("the filing was submitted in 2022") or in a technical or legal context. Never passive to soften a point or avoid naming who is responsible.

Contractions

Yes, in most contexts. They're in voice. Avoided in: press releases, legal pages, formal proposals, and product documentation where precision is paramount. When in doubt, read the sentence aloud. If the contraction sounds natural, use it.

Oxford comma

Yes, always. No exceptions.

Capitalisation

Sentence case throughout. Title case only for proper product names (the Screener, the Taxonomy, Markets tab) and job titles immediately before a name. No title case in headlines or section headers.

Numbers

Numerals for all figures used as data points: 50M, 12M, 2,000+, 4 seconds, €8.2B. Spell out numbers used conversationally when below ten ('three platforms,' 'one query'). Percentages always as numerals with the % symbol.

Sentence length

Varied. A long, clause-heavy sentence establishing market context can be followed by three words. That's intentional. The metronome rhythm of medium-length sentences in sequence is the thing to avoid.

Dates

Day Month Year format, no ordinals: "12 March 2026" not "March 12th, 2026." Ranges: en dash, no spaces. "32–50" not "32-50."

Pronouns

"We" for Latency. "You" for the reader. "They" as the singular gender-neutral pronoun. "The analyst," "the investor," "the firm" in third-person. Not "he" or "she." Never "one."

Emoji

Not used. Not in headlines, body copy, email subject lines, or LinkedIn posts from the brand account. The exception is a single emoji in a LinkedIn comment used reactively; not in outbound content.


British English; the default for all Latency content

Latency is a European company. American spellings, idioms, and typographic conventions are not in voice and should be corrected on sight in any content going out under the Latency name.

British — correct

-ise (not -ize) Day Month Year 'single quotes' as primary year-on-year normalise, recognise

American — avoid

-ize Month Day, Year "double quotes" as primary year-over-year normalize, recognize

2 — Human voice mechanics

Six rules for LLM-assisted writing

LLMs produce a recognisable synthetic smoothness that reads as corporate filler to the audience Latency is trying to reach. That audience is trained to detect it. Every piece of content generated with AI assistance must pass these six rules before publication.

01

Syntactic burstiness

Vary sentence length radically. A long, clause-heavy sentence that establishes the market problem can sit next to a three-word sentence. Or a fragment. That's intentional. The enemy is the medium-length metronome: sentences of 15–20 words, one after another, all landing at the same interval.

Correct

"The 18-month data lag isn't a technology problem. It's an infrastructure problem that every fund manager in European mid-market has quietly accepted because nobody thought it was fixable at scale. Latency fixed it."

Wrong

"The 18-month data lag represents a significant challenge for European private market investors. This issue affects deal sourcing and investment decision-making across the sector. Latency provides a solution to address this problem."
02

No em-dashes. No transition openers.

Em-dashes used to set off clauses are an LLM habit. Replace every instance with a comma, parentheses, or a new sentence. This is not a stylistic preference. It is a hard rule.

Do not start sentences with: Furthermore, Moreover, In conclusion, Additionally, It's worth noting that, It is important to highlight, This means that. Humans don't announce that they're adding a point. They add it.

Starting a sentence with "But" or "And" is acceptable when it creates the right rhythm. No comma after either when used this way.

03

Forbidden AI-isms

The following words appear in nearly every LLM output and are immediately recognisable as synthetic. Delete them on sight.

seamlessly leverage empower unlock transformative game-changing robust ecosystem paradigm synergy delve holistic groundbreaking cutting-edge disruptive pivotal
04

No structural symmetry in lists

LLMs produce lists where every item is exactly one sentence, exactly the same length, exactly the same grammatical form. That's the tell. When writing lists for Latency, vary item length deliberately.

Correct

– Source-level ingestion from every major European registry, not third-party aggregators.
– Entity resolution. Legal holding structures linked to operating brands.
– A proprietary taxonomy covering 2,000+ micro-markets that PitchBook doesn't index and Gain doesn't attempt.

Wrong

– We provide source-level data from European registries.
– We offer entity resolution capabilities for complex structures.
– We have a proprietary taxonomy covering European markets.
05

Specific POV. No false balance.

Latency has a position on European private market data infrastructure and it's not neutral. Copy should reflect that. LLMs add hedges and balance by default ("while there are different perspectives", "it's important to consider"). Those hedges kill the authority signal.

Write with a point of view. Professional slang from the audience's vocabulary ("origination," "bolt-on," "IC memo," "coverage gap") can and should appear without being explained. It signals that the writer knows the room.

06

Direct entry and exit

Content starts with the first word of the point. No preamble ("In this piece we'll explore..."), no scene-setting sentence that could be cut without losing anything.

The same applies to endings. The last sentence is the last thought. No "I hope this is useful," no "To summarise what we've covered," no call-to-action tacked on to a piece that wasn't written as a CTA. If the piece needs a CTA, it's the last line because the argument earned it.

3 — Web elements

Writing for the interface

Headings

The heading is the claim. Not the topic, not the category, not the label. "Market intelligence for European private markets" is a label. "The 70% of European companies PitchBook doesn't index" is a claim. Lead with the claim.

Heading hierarchy must be logical for screen readers. Never skip levels for visual effect.

Links

Link text must describe the destination. "Learn more" is not acceptable. "See how entity resolution works" is. The test: if you removed the surrounding sentence, would the link text still tell you where you're going?

Never use "click here." It describes the action, not the destination.

Buttons & CTAs

Button text is a verb plus, optionally, the object of that action: "Start analysis." "Run query." "Export report." Never "Submit." Never "Click here." Never "Learn more" on a button.

Lists

Bullet lists: items are genuinely parallel and unordered. Numbered lists: sequence matters. Two items or fewer: use prose. Don't use a list to break up information that would read naturally as a sentence or two.

Empty states

Empty states are an onboarding moment, not a failure state. Orient the user to what they're about to be able to do.

"No companies yet. Start a market scan to build your first target list."

Not: "No results found."

Tooltips

Maximum 60 characters. Explains the non-obvious, not the obvious. Answers: what is this field, what does this value mean, why does this number differ from the registry data.

Not "Click to see more."

Forms

Field labels: sentence case, outside the field, not as placeholder text. Placeholder text disappears when the user starts typing. Mark required fields; not optional ones.

Error messages: [what happened] + [how to fix it]. Two sentences maximum.

Alt text

Alt text is for content, not decoration. Ask: what would you tell someone over the phone if they asked what's in this image? If the image is purely decorative, use an empty alt attribute (alt="").

4 — Content types

Specifications by channel

Each channel has a distinct purpose, structure, and tone calibration. Writing the same way across all of them is a failure of positioning, not a stylistic choice.

Web — vertical & use case pages

Convert a specific job title with a specific problem

Each page answers one question: "Is this for me?" Authoritative leads. The reader is evaluating whether the problem description is accurate.


Length

350–600 words of body copy. Long enough to establish credibility, short enough to reach the CTA before the reader has time to leave.


Don't

Open with Latency's capabilities. Use "comprehensive" to describe data coverage. Write the same page for all verticals with the nouns swapped.

Promotional deck

Works without narration

Every slide has one headline claim. The claim lives in the title bar. A reader who only reads the title of every slide should be able to reconstruct the full argument.


Slide copy rule

If the title is a label ("Our Data Coverage"), change it to a claim ("Coverage where your current stack has gaps").


Don't

Put the founding story before the problem. Use full paragraphs in slides sent as PDF. Include a "vision" slide in a sales deck.

LinkedIn

Build category authority

Short, provocative, no preamble. Sentence fragments are fine. Starting with a number is fine. The goal: be the account people in European private markets follow because it consistently says something worth reading.


Cadence

3–5 posts per week. Quality over frequency. One mediocre post damages the authority signal more than three days of silence.


Don't

Post thought leadership with no Latency-specific angle. Use hashtags more than two per post. Start with a question that answers itself.

Email marketing

Cold: 80–120 words. Full stop.

Subject lines: specific, not clever. A number or a named claim outperforms a question or a teaser. This audience does not read long cold emails.


Subject line examples

The 70% of European mid-market PE that's not in your current stack

80% of your TAM isn't on Apollo


Never

Start with "I hope this finds you well." Use "I wanted to reach out because..." Include more than one CTA. Send a cold email longer than 150 words.

5 — Accessibility & inclusive language

WCAG AA compliance is the floor

Latency targets WCAG AA compliance. The rules in this section are the minimum standard, not the ceiling.

Writing for people

Gender

"They" is the correct singular gender-neutral pronoun. "The analyst... they" not "he or she." Rewrite to avoid the pronoun when possible ("analysts who..." not "the analyst who...").

Ability

Avoid idioms that use disability as metaphor. "The data is missing" not "the data is blind to." "Unavailable" not "lame." "Understand" not "see" when vision is the implied mechanism.

Geography

Write for a European professional, not a British or US one by default. "The City" is not a universal reference. "Mid-market" means different things in different markets. Define it when precision matters.

Technical accessibility

Reading level

Target Flesch-Kincaid reading level 10–12 for marketing copy. The subject matter is complex; the sentences don't have to be. Average sentence length 18–22 words in body copy, with variation.

Heading hierarchy

Use headings in sequence. H1 before H2, H2 before H3. Never skip a level for visual effect. Screen readers use heading structure to navigate the page.

Animation & motion

Any animation that lasts more than three seconds or repeats must have a pause control, or must be suppressible via the OS-level "reduce motion" preference. No auto-playing video with sound.

Links

Links must be distinguishable from surrounding text by more than colour alone. Underline on hover at minimum; underline by default preferred for body copy links.