Cyanotype / Blueprint (1842–present)

Anna Atkins's botanical photograms established the cyanotype aesthetic: Prussian blue ground with white silhouettes of objects placed directly on light-sensitive paper. The blueprint evolved for architectural and engineering drawings but shares the same high-contrast, ghostly quality — precise detail rendered as white absence within an intense blue field.

Fête poster

This time it chose a detailed side-on ferret racing across numbered lanes in a cyanotype-style layout. Try again and the dice may well land on another detail from the copy entirely.

Copy this prompt into ChatGPT:

Brindlewick Village Fête
Saturday 6th September, 12 noon – 5pm
Brindlewick Cricket Club, Hawthorn Lane, Brindlewick
In aid of St. Peter's Church Restoration Fund

Attractions:
- Grand tombola
- Homemade cakes, jams and preserves
- BBQ and refreshments
- Plant and produce stall
- Children's games and bouncy castle
- Ferret racing
- Live folk music from The Muddy Boots
- Local craft and maker stalls

Free entry. All welcome. Organised by Brindlewick Village Community Association.

---

Design this poster in Cyanotype / Blueprint style (1842–present).

Event poster as botanical or architectural cyanotype — subject as white silhouette on deep blue

Visual traits:
- deep Prussian blue ground
- subject rendered as white silhouette or fine white line
- high contrast with no mid-tones
- delicate fine detail in white against blue
- slight halo or soft edge where light has scattered

Typography:
- white text on blue ground — stencil or fine technical lettering
- engineering-drawing annotation style

Palette: Prussian blue and white only; occasional very pale blue for mid-tones
Layout: specimen or object centred on blue field; technical text in margins or below
Subject: this style is a container and takes whatever subject you bring, and the copy almost always offers several. Before choosing, name three or four things in it that could each carry a picture — the obvious one, but also the quieter ones — and say what they are. An observatory open night might offer the meteorite visitors are allowed to hold, the queue winding up the stairs, or the dome standing open to the night. Then pick one of them and commit to it completely. Do not simply take the boldest or most unusual item every time: it is the right answer often enough to be boring, and a poster that always makes the same choice makes the same poster for everyone. Any candidate on your shortlist is a legitimate poster, so choose freely among them rather than ranking them. The subject need not be the most important item on the bill, and the hook above it tells the reader what the poster is for. If the copy offers nothing specific enough to draw, let the typography carry the poster rather than inventing something.
Mood: scientific, ghostly, precise, quietly beautiful

Avoid: warm colours of any kind, photographic realism with tonal range, decorative ornament, artificial yellowing or ageing

Before drawing, read the event copy above and decide the following.
State your decisions in one short paragraph, then generate the poster.

1. The hook.
Find the single line a passer-by needs in order to know whether this is for
them. It is usually what the event would be called in conversation — "the
village fête", "the plant sale" — not who is organising it, not who it is in
aid of, not the ticket price, not the promoter. If two lines compete, choose
the one the reader would most miss if it were removed. That line is the
poster.

2. The tiers.
Sort the remaining copy into two further groups: what someone needs in order
to turn up (day, date, time, place), and everything else (prices, credits,
beneficiaries, lists of what's on, small print). Every line of copy appears on
the finished poster — the hierarchy governs size and position, never
inclusion. Make the steps between the three tiers unmistakable: the hook
should be several times the size of the small print, not one notch larger. If
a fact the second tier needs is missing from the copy, leave it out and say
so — do not invent it.

3. The subject.
Whatever the Subject line in the style block calls for, there is only ONE of
it: one thing the eye lands on, in front, sharp, unambiguous.

A setting is allowed beneath it. A single coherent place — one continuous
scene, held back in contrast and detail — earns its keep, because it
establishes where and when in a single move. The test is continuity: a street
of shopfronts behind the subject is one place. A bicycle, a coffee cup, a dog
and a shop sign arranged around it are an assortment, and an assortment is the
failure this brief exists to prevent. If the secondary imagery cannot be
described as one place, cut it.

Everything else is type. Names, dates, times, addresses, prices and web
addresses are read, not depicted — never illustrate them. A list of what's on
exists to answer questions once someone is already reading; it is not a
specification for one small vignette, badge or icon each.

Small marks tied to individual lines of small print — a device beside the
address, a mark beside the beneficiary — are typographic furniture, and are
fine. A grid of icons standing in for the list of what's on is not.

Do not invent logos, crests, badges or sponsor marks for the organisations
named in the copy. A real committee will otherwise be handing out a poster
carrying a coat of arms their club does not have.

The image should not merely restate the hook. A poster headed "Spring Plant
Sale" showing a spring plant sale has said one thing twice.

One piece of wit is permitted, and only one. It belongs inside the single
subject or at its edge, never as a second element competing beside it. If it
cannot be placed within the composition, leave it out.

Draw only what you can be sure the event has.

4. Names.
A name may be played on, but only when all four of these hold:

- It is part of the hook — the act, the show, the occasion. Never the venue,
  the promoter, the charity, the sponsor or the town. Those live in the small
  print, and a poster that illustrates its small print is advertising the
  wrong thing. The exception proves it: if the occasion genuinely is the venue
  — a first night at a famous hall — then the venue has risen into the hook,
  and it qualifies.

- It is not a personal name. Surnames and forenames label people; they do not
  describe them. A band called Carver is not about carving, and illustrating
  it makes the poster about a butcher. Evocative common nouns and phrases are
  fair game.

- You take the register of the word, not the object it denotes. A band called
  The Undertow is not asking for a picture of an undertow. It is offering
  scale, pull, the sublime, being out of your depth — find a real image inside
  that, rather than the first noun.

- It becomes, or inflects, the single subject, fully committed. A visual pun
  is a whole picture or it is nothing: never a token in the corner, never a
  garnish beside the type. Where the style dictates its own subject, the name
  may colour that subject but never replace it, and where the style calls for
  no subject at all, the name introduces none.

The test: the image must work for someone who never makes the connection. If
it is only good once explained, it is not good.

5. Space and ornament.
Empty space is a design element, not a gap to fill. Leave areas genuinely bare
wherever the style allows, and resist decorating the margins. Ornament may be
dense; information may not. If the style is an ornamental tradition, let the
ornament be as rich as the tradition demands — but keep one subject, one
dominant line of type, and everything else subordinate. Patterns may repeat.
Subjects may not.

Cyanotype / Blueprint — fête poster example, version 2 prompt

Gig poster

This time it went with a white technical drawing of a vintage stage microphone on dark blue, with its cable rising into a small wave beside the event details. Try again and the dice may well land on another detail from the copy entirely.

Copy this prompt into ChatGPT:

Pale Light Promotions presents:

CARVER & THE FLOOD
with support from Mena Grace

Friday 19th September, doors 7:30pm
The Anchor Rooms, 14 Tallow Lane, Bristol WX4 2JQ

Tickets: £12 advance / £15 on the door
Available from The Anchor Rooms bar or pallightpro.co.uk

All ages. Bar until midnight.

---

Design this poster in Cyanotype / Blueprint style (1842–present).

Event poster as botanical or architectural cyanotype — subject as white silhouette on deep blue

Visual traits:
- deep Prussian blue ground
- subject rendered as white silhouette or fine white line
- high contrast with no mid-tones
- delicate fine detail in white against blue
- slight halo or soft edge where light has scattered

Typography:
- white text on blue ground — stencil or fine technical lettering
- engineering-drawing annotation style

Palette: Prussian blue and white only; occasional very pale blue for mid-tones
Layout: specimen or object centred on blue field; technical text in margins or below
Subject: this style is a container and takes whatever subject you bring, and the copy almost always offers several. Before choosing, name three or four things in it that could each carry a picture — the obvious one, but also the quieter ones — and say what they are. An observatory open night might offer the meteorite visitors are allowed to hold, the queue winding up the stairs, or the dome standing open to the night. Then pick one of them and commit to it completely. Do not simply take the boldest or most unusual item every time: it is the right answer often enough to be boring, and a poster that always makes the same choice makes the same poster for everyone. Any candidate on your shortlist is a legitimate poster, so choose freely among them rather than ranking them. The subject need not be the most important item on the bill, and the hook above it tells the reader what the poster is for. If the copy offers nothing specific enough to draw, let the typography carry the poster rather than inventing something.
Mood: scientific, ghostly, precise, quietly beautiful

Avoid: warm colours of any kind, photographic realism with tonal range, decorative ornament, artificial yellowing or ageing

Before drawing, read the event copy above and decide the following.
State your decisions in one short paragraph, then generate the poster.

1. The hook.
Find the single line a passer-by needs in order to know whether this is for
them. It is usually what the event would be called in conversation — "the
village fête", "the plant sale" — not who is organising it, not who it is in
aid of, not the ticket price, not the promoter. If two lines compete, choose
the one the reader would most miss if it were removed. That line is the
poster.

2. The tiers.
Sort the remaining copy into two further groups: what someone needs in order
to turn up (day, date, time, place), and everything else (prices, credits,
beneficiaries, lists of what's on, small print). Every line of copy appears on
the finished poster — the hierarchy governs size and position, never
inclusion. Make the steps between the three tiers unmistakable: the hook
should be several times the size of the small print, not one notch larger. If
a fact the second tier needs is missing from the copy, leave it out and say
so — do not invent it.

3. The subject.
Whatever the Subject line in the style block calls for, there is only ONE of
it: one thing the eye lands on, in front, sharp, unambiguous.

A setting is allowed beneath it. A single coherent place — one continuous
scene, held back in contrast and detail — earns its keep, because it
establishes where and when in a single move. The test is continuity: a street
of shopfronts behind the subject is one place. A bicycle, a coffee cup, a dog
and a shop sign arranged around it are an assortment, and an assortment is the
failure this brief exists to prevent. If the secondary imagery cannot be
described as one place, cut it.

Everything else is type. Names, dates, times, addresses, prices and web
addresses are read, not depicted — never illustrate them. A list of what's on
exists to answer questions once someone is already reading; it is not a
specification for one small vignette, badge or icon each.

Small marks tied to individual lines of small print — a device beside the
address, a mark beside the beneficiary — are typographic furniture, and are
fine. A grid of icons standing in for the list of what's on is not.

Do not invent logos, crests, badges or sponsor marks for the organisations
named in the copy. A real committee will otherwise be handing out a poster
carrying a coat of arms their club does not have.

The image should not merely restate the hook. A poster headed "Spring Plant
Sale" showing a spring plant sale has said one thing twice.

One piece of wit is permitted, and only one. It belongs inside the single
subject or at its edge, never as a second element competing beside it. If it
cannot be placed within the composition, leave it out.

Draw only what you can be sure the event has.

4. Names.
A name may be played on, but only when all four of these hold:

- It is part of the hook — the act, the show, the occasion. Never the venue,
  the promoter, the charity, the sponsor or the town. Those live in the small
  print, and a poster that illustrates its small print is advertising the
  wrong thing. The exception proves it: if the occasion genuinely is the venue
  — a first night at a famous hall — then the venue has risen into the hook,
  and it qualifies.

- It is not a personal name. Surnames and forenames label people; they do not
  describe them. A band called Carver is not about carving, and illustrating
  it makes the poster about a butcher. Evocative common nouns and phrases are
  fair game.

- You take the register of the word, not the object it denotes. A band called
  The Undertow is not asking for a picture of an undertow. It is offering
  scale, pull, the sublime, being out of your depth — find a real image inside
  that, rather than the first noun.

- It becomes, or inflects, the single subject, fully committed. A visual pun
  is a whole picture or it is nothing: never a token in the corner, never a
  garnish beside the type. Where the style dictates its own subject, the name
  may colour that subject but never replace it, and where the style calls for
  no subject at all, the name introduces none.

The test: the image must work for someone who never makes the connection. If
it is only good once explained, it is not good.

5. Space and ornament.
Empty space is a design element, not a gap to fill. Leave areas genuinely bare
wherever the style allows, and resist decorating the margins. Ornament may be
dense; information may not. If the style is an ornamental tradition, let the
ornament be as rich as the tradition demands — but keep one subject, one
dominant line of type, and everything else subordinate. Patterns may repeat.
Subjects may not.

Cyanotype / Blueprint — gig poster example, version 2 prompt