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The Xterra Edze newsletter
Proof. Monthly notes on brand, technology and AI, with sources.
Each issue covers three to five changes, what each means for your work and the evidence behind it. Written by our team, read in under five minutes.
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- Xterra Edze Issue 3 · Designing consent and approval India’s data protection rules arrive in phases, accessibility becomes a condition of sale… New
- Xterra Edze Issue 2 · Provenance: four records clients can ask for Design tokens get a stable format, media gets Content Credentials, AI gets a…
- Xterra Edze Issue 1 · Numbers that decide whether work goes live Four thresholds we check before anything is released, for page speed, bulk email, AI agents…
Read the latest
This month’s issue, and what is in it.
India’s data protection rules arrive in phases, accessibility becomes a condition of sale in the EU and AI agents need to ask before they act.
What you get
Every issue has the same six parts, so you know where to look.
Here is the latest issue taken apart, in the order you read it. The stories change each month; the rules for writing them do not.
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Masthead and editor’s note
The issue number, date, headline and summary, and why we wrote it, in under 200 words.
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Figures with sources
Every number comes with its source and date.
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Worth reading
The primary sources behind the issue, from standards bodies, regulators and researchers, with a line on why each matters.
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The web version
Every email links to the issue on this site, archived and searchable, with related work and articles from our team.
On the web: 6 related pieces -
Why you got it and how to leave
Every email says why it reached you and has an unsubscribe link: one button, no log-in.
The latest issue drawn as an email in six parts: masthead and editor’s note, stories, figures with sources, the Worth reading list, a button to the web version and the footer with the unsubscribe link.
Schedule
Every issue by month, with the topics each one covered.
A new issue goes out in the first week of each month. Open one, or follow a topic across issues. Two other kinds of email go only to readers who ask for them.
Proof · every issue
Topics led
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Issues from August 2026
01 Numbers that decide whether work goes live 4 stories · 4 min
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Issues from September 2026
02 Provenance: four records clients can ask for 4 stories · 4 min
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Issues from October 2026
03 Designing consent and approval 4 stories · 4 min
- Due First week of November 2026 Get it by email
- Brand Brand in No. 02: A design token standard Brand in No. 03: One-click unsubscribe
- AI AI in practice in No. 01: A pass mark set before the test AI in practice in No. 02: ISO/IEC 42001 for managing AI AI in practice in No. 03: Ask before acting
- Technology Technology in No. 01: 200 ms to respond to input Technology in No. 02: A carbon number for software
- Product Product & experience in No. 01: Target size: 24 by 24 pixels Product & experience in No. 03: The European Accessibility Act
- Campaigns Campaigns & content in No. 02: Content Credentials
- Martech Marketing technology in No. 01: Spam rate below 0.3% Marketing technology in No. 03: Consent you can prove
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3 issues
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Designing consent and approval
India’s data protection rules arrive in phases, accessibility becomes a condition of sale in the EU and AI agents need to ask before they act.
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Provenance: four records clients can ask for
Design tokens get a stable format, media gets Content Credentials, AI gets a management-system standard and software gets a carbon intensity score.
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Numbers that decide whether work goes live
Four thresholds we check before anything is released, for page speed, bulk email, AI agents and accessibility, and where each one is written down.
Your data
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Here is what signing up stores, why we keep it and what happens when you unsubscribe.
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