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Make a deal with Barnabas Calder
🔒 Paid proposals held safely in escrow — released only when the work's approved.
Followers
3.3K
Account age
1 yrs
💰 Suggested sponsorship rate
$40 – $65 / sponsored post
Estimated from audience size & typical reach — every deal is negotiable and held in SocialDB escrow.
🧰 Free analysis for Barnabas Calder
Known for
📊 Post engagement
30
Avg engagement / post
0.9%
Engagement vs followers
Sep 2024
On Bluesky since
🔥 Top post: Do you know of someone who might be interested in doing a #PhD o · 130 likes + reposts
📊 Activity & format
Posting cadence
1 / week
A lower-frequency account — each post lands with more weight.
Content mix
Mostly text
Recent: 7 text · 5 image · 0 video.
Follower / following
3.3×
Follows 1K back. A more reciprocal / networked account.
Recent posts
View on Bluesky ↗
If you're not following Frans Saraste, it's time to take a hard look at your priorities and values. Or you could just follow him, I suppose.
Two events next week for @florianurban.bsky.social and my book with @johnczulowskiburns.bsky.social, Form Follows Fuel. Come to a discussion with @jeremytill.bsky.social and Anthony Powis at U of Westminster on Tuesday, or our London book …
Thank you so much - I'm glad it's proven useful.
I was on BBC R4 today talking about the beautiful South Bank Centre. Starts 19 mins in.
www.bbc.co.uk/sounds/play/...
Here's me prompted by Matt Rendell to risk the opinion that perhaps the #winterolympics could be less #climatecrisis and ecosystem destructive:
m.youtube.com/watch?v=sfhW...
Great to have @tim-waterman.co.uk speaking at Liverpool School of Architecture today. Masses of thought-provoking insights on our perceptions of our planet, and even some hopeful notes, which is quite a hard thing to achieve in January 202…
The correct answer was:
Guess #whatbuilding:
Brilliant to see the BBC picking up Ranald Lawrence and Dean Hawkes' fabulously interesting and important #environmentalhumanities work on #HardwickHall. They measured solar gain to understand Elizabethan comfort tech.
The original article…
Did anyone snap the Foster/Holcim Essential Homes prototype at the Venice Biennale 2023? If so might I be able to use your photo for an article? I'm not getting replies to my request for permission.
The wonderful @johnczulowskiburns.bsky.social has joined Bluesky! Do give him a follow. He's the architect who produced the digital models of our buildings for #FormFollowsFuel, which enabled us to calculate #embodiedenergy for each of the…
🦋 Handle & authenticity
Bluesky handle
@barnabascalder.bsky.social
A default .bsky.social handle — genuine, but not domain-verified. Confirm identity before a high-value deal.
On Bluesky since
Sep 2024
Joined after Bluesky opened to the public — a settled account with a real history.
💡 Facts
🗓️Joined Bluesky in 2024 — 1 year ago.
👁️Averages 30 views per post.
📤Posts about 1× per week.
🛡️ Audience credibility
75/100
Good
Credibility score
92%
Real
Real audience
Low
Fake-follower risk
High
Data confidence
- Est. 92% real, active audience · Low fake-follower risk.
- Strong engagement (~0.9% of followers engage each post) — an active, real audience.
Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.
About
Historian of #architecture and #energy, at University of Liverpool School of Architecture. Author of Architecture: From Prehistory to Climate Emergency (Pelican, 2021), and Raw Concrete: The Beauty of Brutalism (William Heinemann, 2016).
📸 Gallery
🔀 Audience overlap
EstimatedEstimated shared audience with similar creators — useful for avoiding overlap (or doubling down) when planning a campaign.
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