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Experimental Mind · Jun 22, 2026

'Hello Power' — Digest 25, 2026

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Kevin Anderson · Experimental Mind

I had planned to be running a 30k UTMB Zugspitze trail run in Garmisch-Partenkirchen last weekend. Then my wife had a small accident (she’ll be fine) and that plan went out the window. With the extra time, I picked up The Decision Stack by Martin Eriksson. So many books tackle vision, or strategy, or action, Martin’s is the one that connects all parts into something coherent. Recommended.

Enjoy this week’s selected articles to read, tools to explore, jobs to check out, and new events on the calendar.

Convert—A/B tests & personalization for growth teams

Experimentation Jobs—Find your next role

Personal branding for women in growth & experimentation
Lucia van den Brink & Daphne Tideman launched their course running from July 10–24, helping experimentation and growth practitioners build a recognisable LinkedIn presence. It covers positioning, content strategy, and you will have a published post by the end. For every paid ticket, a free spot goes to someone out of work or facing financial difficulty. I just signed up to support that. SIGN-UP

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Ready-to-use experiment recipes
Convert added recipes to their developer docs section offering code-ready experiment templates. Instead of explaining implementation from scratch, developers can build directly on working recipes, cutting time-to-first-experiment. TEST

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Hello Power
Jakub Linowski created this interactive simulator letting you lock and unlock A/B test parameters. Play with the base rate, MDE, sample size, power and alpha. You will see the trade-offs in real time. Much more powerful than just reading about them. PLAY

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New book: The Scientific Mindset
Stefan Thomke announced his new book, the follow-up to "Experimentation Works". It ships in November, but preorders are already open. PREORDER

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Submit your case: Experimentation Heroes 2026
Final week to enter your entry for one the three categories: Conversion, Experimentation Culture, and Beyond Web. Deadline June 26. SUBMIT

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Introducing the Makers Manifesto
This is a cross-disciplinary set of principles for building good products in the AI era, aimed at makers and leaders. My personal favourite: “Build on real evidence, faster building only helps if your understanding keeps pace, tested continuously against reality.” READ

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Last week’s favourite:

The “art” part of setting metrics
By Randy Au — Picking metrics sounds technical but is mostly a messy co-ideation exercise. Teams default to vanity metrics; experienced practitioners push back by asking what decision the metric forces. The goal isn’t the perfect metric, but to pick a sensitive enough alarm bell that triggers when something needs investigating. READ

Find 1k+ open roles on ExperimentationJobs.com. This week’s featured roles:

A running list of upcoming events. Subscribe here. (👋= join me, 🎁= discount)

If this newsletter sparked something and you want to talk it through, a few ways I help:

  • Scale experimentation
    Strategy, setup, metrics, and ways of working for teams that want more impact.

  • Careers and hiring
    Support with your next role, or help finding and hiring strong experimenters.

  • Quick sparring
    A fresh outside perspective on your ideas, roadmap, or experimentation setup.

Interested?
Just hit reply and tell me what you’re thinking about.

Have a great week and keep experimenting.

Thanks, Kevin

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