# QR codes for consultants

> For consultants the highest-value QR code is a booking link, on business cards, proposal covers and the final slide of every talk. Add case-study deep links in decks and a vCard for contact capture. On projected slides, pair the code with a short URL and keep it up through the Q&A.

Source: https://useqr.app/qr-codes-for/consultants · Last reviewed 2026-08-21 · UseQR is free forever, no signup.

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## The codes that earn their place

| Code | Where | Why |
|---|---|---|
| Booking link | Cards, proposal covers, end slides | Interest becomes a diary slot without an email exchange |
| Case-study deep link | Proposals, decks, one-pagers | The reader lands on the relevant proof, not the homepage |
| [vCard](/vcard-qr-code) | [Business cards](/qr-codes-on/business-cards), badge backs | Saved to contacts before the conversation ends |
| [Social hub](/social-qr-code) | Newsletter footers, event materials | One code for the profile, the podcast, the mailing list |

## The end-of-talk slide is the highest-stakes placement

A conference talk ends with thirty seconds of maximum attention, and most speakers waste
it on a slide shown too briefly with a code too small. The maths is unforgiving: the
**10:1 rule** says a viewer 10 m from the screen needs a code roughly **1 m across**,
more than most projected slides can give it. So do both:

- Make the code as large as the slide allows, a third of the slide height is not too
  much on a [projected deck](/qr-codes-on/slide-decks).
- Print a **short, readable URL** beside it for the back rows the code cannot reach.
- Leave the slide up **through the entire Q&A**. A code shown for eight seconds gets
  photographs of a half-loaded camera app;
  [minimum on-screen duration](/docs/design/minimum-on-screen-duration-for-a-qr-code)
  covers why 15 seconds is the floor and minutes are better.

Point the code at the talk's resource page (slides, the relevant case study, the booking
link), not at a homepage the audience must navigate.

## Proposals and decks

A proposal cover code that opens the booking diary shortens the "shall we discuss?"
loop. Inside the deck, deep links matter more than links: a code beside the
manufacturing case study should open that case study. Append
[UTM parameters](/docs/how-to/how-to-add-utm-parameters-to-a-qr-code) per document
(`utm_source=proposal-acme`), and your analytics shows which artefacts actually get
scanned, which is worth knowing before the next reprint.

## What goes wrong

- The end slide appears for five seconds before "any questions?" cuts to black.
- A calendar-file code where a booking link belongs, a [calendar QR](/calendar-qr-code)
  adds one fixed event; a booking URL lets the prospect choose a slot.
- The same untagged URL on cards, decks and slides, so nothing about what worked is
  measurable.

## FAQ

### What size should a QR code be on a presentation slide?

As large as the layout allows, a third of the slide height is reasonable. The 10:1 rule
means a viewer at 10 m needs about 1 m of code, which projection rarely delivers, so
always pair the code with a short readable URL for the back of the room.

### What should a consultant's business card QR code link to?

A booking link, usually. A vCard code saves your details to their phone; a booking code
turns interest into a meeting. If the card has room for one code, choose the action you
most want taken, and label it so the choice is obvious.

### How long should a QR code stay on screen during a talk?

Fifteen seconds is the floor; through the whole Q&A is better. The audience must notice
the code, open a camera, frame and scan, and most people only decide to scan after a
moment's thought, by which time a briefly shown slide has gone.

## Try it

- https://useqr.app/url
- https://useqr.app/vcard
- https://useqr.app/calendar
- https://useqr.app/social