Review a client deck in six passes rather than one read through: argument, evidence, numbers, confidentiality, brand and format, and the final file. Forty checks in total.
The reason for passes rather than a single reading is simple. Your brain cannot hold six different quality questions at once, and it defaults to the easiest one. That is why reviewers who start at slide one and work forward end up with a beautifully formatted deck whose central argument does not hold.
I have been on both ends of this. The version below is roughly the order an experienced partner actually works through a document, which is not the order the slides are in.
Pass 1: the argument
Do this before anyone touches formatting. Formatting a slide that should not exist is pure waste.
- Read the action titles in sequence, as text, with no slides. Do they make a case on their own?
- Does each title state a conclusion rather than describe a topic? "Costs rose 12% because of X" beats "Cost development".
- Is there one central message, and can you say it in a sentence?
- Does the deck answer the client's actual decision, or the topic around it?
- Is the sequence an argument or a list? A list is a sign nobody decided.
- Is there a slide that exists only because you had it? Remove it.
- Does the executive summary work if the reader stops there?
- Would the client's most sceptical stakeholder find their objection addressed?
Check seven deserves emphasis. Many senior readers never get past page three. If your summary needs the rest of the deck to make sense, the deck is structured for the author rather than the reader.
Pass 2: the evidence
Now go claim by claim. This is the slowest pass and the one that protects you.
- Does every material claim have a traceable source, and can you find it in under a minute?
- Do quoted figures carry a date, a period, a unit and a currency?
- Is market data current, and is the as of date shown on the slide?
- Are project references drawn from approved records with documented permission?
- Are CVs current, including role, availability and certifications?
- Are client names, logos and case details cleared for this specific audience?
- Are third party statistics correctly attributed, and does the source actually say what you claim?
- Are benchmarks comparable, or are you comparing different definitions?
- Are assumptions stated where a conclusion depends on them?
- Are the limitations of your analysis acknowledged somewhere visible?
Check fifteen catches a specific and embarrassing failure: a statistic that has been passed along so many times that nobody has read the original, and the original says something narrower. If you cannot open the source, do not use the number.
Pass 3: the numbers
Numerical inconsistency is the error clients notice most reliably, because a client who works with these figures daily spots a mismatch instantly.
- Do totals add up on every slide, including rounded ones?
- Do the same figures match across slides, appendix and executive summary?
- Are units, currencies and scales consistent, including millions versus thousands?
- Do percentages have a stated base, and is the base the same one throughout?
- Do chart axes start where they should, and is any truncation deliberate and labelled?
- Do chart values match the underlying table?
- Are time periods consistent, including fiscal versus calendar year?
- Does any number appear that nobody in the room can source?
Check twenty is the one that most often survives to the meeting. Numbers get updated on the summary slide and not in the appendix, or the other way round, because the two live in different parts of the file and the update happened at eleven at night.
Pass 4: confidentiality and permissions
- Does the deck contain material from another client that should not be here?
- Are speaker notes, hidden slides and comments cleaned or intentionally retained?
- Has document metadata been checked, including author, company and revision history?
- Is personal data limited to what this audience needs, and is there a lawful basis for it?
- Is the confidentiality marking correct for the intended distribution?
- Are named individuals' details accurate, current and appropriate to include?
Checks twenty eight and twenty nine are the classic leaks. Speaker notes from an internal version, a hidden slide from a previous client, or metadata naming a competitor as the original author. All three have caused real incidents, and all three take ninety seconds to check.
Pass 5: brand and format
- Does the deck use the current approved master, with no foreign or orphaned layouts?
- Are fonts, colours and spacing from the theme rather than manually overridden?
- Are charts and tables native objects rather than pasted images?
- Are required legal notices, disclaimers and regulatory statements present and unedited?
- Is the language, date format, number format and currency correct for the audience?
- Is the deck accessible: reading order, alt text, sufficient contrast, selectable text?
Most of these are deterministic and should be automated. Humans are unreliable at deterministic checking, particularly late, and this is exactly the work a system should take off a reviewer so they can spend their attention on passes one and two.
Pass 6: the final file
The version you send is not the version you have been editing. Check it separately.
- Open the exported PDF and page through it. Fonts, layout, charts, page count, no broken elements.
- Confirm the filename convention, the correct recipient, the right version, and that any portal upload succeeded and was acknowledged.
Two checks, and they catch a surprising share of the incidents that actually reach a client. An export can substitute fonts, reflow a table, drop a chart or silently omit a slide that was hidden. Nobody notices because nobody opened the file they sent.
The three extra checks for AI generated decks
If part of the deck was drafted by an AI system, add these before pass six.
Every factual claim traces to a real source. Plausible invention is the characteristic failure mode of generative systems. The claim will be well written, consistent with the surrounding narrative, and wrong. Confirm the source exists and says what the slide says.
No gap markers were left unresolved. If your workflow marks missing evidence, search the file for those markers. An unresolved marker that reaches a client is worse than a missing slide.
Protected legal wording is verbatim. Compare it against the approved record character by character rather than by eye. A paraphrase can read correctly and mean something legally different, and this is the one place where "close enough" has real consequences.
How to use this without it becoming theatre
Forty checks on every internal status update would be absurd, and a checklist people ignore is worse than no checklist.
Tier it. Internal working material gets pass one and a quick look at pass three. Client facing material gets all six. Board, regulatory or transaction material gets all six with a second independent reviewer.
Automate what is deterministic. Passes three, five and six are largely machine checkable. Number reconciliation, master compliance, font and colour violations, missing legal wording, export integrity. Let a system do those and let humans do passes one, two and four, which need judgement.
Give the review real time. Budget against the number of material claims, not the number of slides. A twenty slide deck carrying forty factual claims takes longer than a sixty slide deck of process visuals.
Use a second reader. Authors read what they meant to write, not what they wrote. The final check should be done by someone else, ideally someone who will be in the room when the deck is presented, because delivery accountability changes how carefully a person reads.
Where offgen fits
Several of these passes are automatable, and that is where the leverage sits. In offgen, source references and record identifiers survive into the deck, so check nine takes seconds rather than emails. Brand governance handles most of pass five during generation rather than after it. Lockable elements mean protected legal wording is not something a reviewer verifies by eye every single time. Output stays native and editable, so corrections happen in the file that remains the record.
More on how this fits consulting delivery is on our consulting page.
The habit worth building: run pass one before anyone formats anything. It is twenty minutes, it happens before the sunk cost of a beautiful deck makes people defensive, and it saves more time than the other five passes combined.
Frequently asked questions
What should you check before sending a client deck?
Work in six passes: the argument, the evidence behind every claim, numerical consistency, confidentiality and permissions, brand and format, and the final exported file. Checking in passes catches far more than reading the deck once from front to back.
Why check the argument before the formatting?
Because formatting a slide that should not exist is wasted work, and because reviewers who start with formatting rarely go back to the argument. Read the action titles in sequence first. If they do not make a case on their own, no amount of polish will fix the deck.
What are the most common errors in consulting decks?
Numbers that do not reconcile across slides, action titles that describe rather than conclude, claims with no traceable source, stale market data with no date, confidential material left in speaker notes or hidden slides, and a final PDF that differs from the working file.
How do you check an AI generated deck differently?
Add three checks. Confirm every factual claim traces to a real source, since plausible invention is the characteristic failure. Check for gap markers that were left unresolved. And check protected legal wording verbatim, because a paraphrase can look correct and be legally different.
Who should do the final check?
Someone other than the person who built the deck, and ideally someone who will be in the room when it is presented. Authors read what they meant to write. A second reader with delivery accountability catches things the author cannot see.
How long should a final review take?
Budget against the number of material claims rather than the number of slides. A twenty slide deck with forty factual claims takes longer to review than a sixty slide deck that is mostly process visuals. Ten minutes on a client facing deck is not a review.
Sources
- 01Regulation (EU) 2016/679 (General Data Protection Regulation) — EUR-Lex, 2016-04-27. Accessed 26 August 2026.
- 02Editable templates — offgen. Accessed 26 August 2026.
- 03Consulting industry solutions — offgen. Accessed 26 August 2026.
Related articles
About the author
Florian Ploszczyk
Co-Founder and COO, MD
Florian writes about consulting workflows, professional presentations, company knowledge, and the controlled adoption of agentic AI.