Svenja Krüger, Mr. Petz AI

Every two weeks · ten minutes · free of charge

What I always
wanted to know.


One booklet, one question from everyday office life – answered in ten minutes, without jargon. Portrait or landscape.

  • One questionThe one people actually ask at work.
  • Ten minutesShort, sourced, ready to use.
  • Two formatsTo print or to read on screen.
Subscribe free of charge
Booklet 1

What is actually useful in ChatGPT, Claude, Gemini and Copilot?

Ten practical moves for HR, front office and administration. All tested in the free versions, all ready to copy, none longer than two minutes.

September 2026 · German
Booklet 2

How do I know when ChatGPT is making things up?

Not from the tone: wrong answers sound exactly as confident as right ones. How to spot it anyway, which check takes two minutes and which one is a waste of time.

September 2026 · German
Booklet 3

May I paste a job application into ChatGPT?

Short answer: no – and the reason is simpler than you think. What is allowed without asking, where permission is required and when the works council has a say.

October 2026 · German
Booklet 4

What does this actually cost me if I do it properly?

Documented licence prices for September 2026, why a free account is not enough in a company, and a worked example for thirty employees.

October 2026 · German
Booklet 5

Why won’t the staff go along with it?

Almost every second person uses AI at work – and almost every second one rejects it. The biggest worry is not the job, it is liability. What demonstrably helps comes in five steps.

October 2026

The question everyone asks first

Why is this free?

„If it costs nothing, it can’t be worth much. Who works for free when they could be paid?“

A fair objection – with a simple answer: advertising costs money, too. Whoever places an ad pays for it and gives it to you for free. This booklet is our ad. Only one that is useful to you instead of interrupting you.

On top of that: a booklet like this used to need a copywriter, a designer, a round of corrections and weeks of time. Today I set the rules, check the sources and decide what goes in. The rest is handled by a workflow we built ourselves.

  • Weeks became hours

    Typesetting, images, both formats and the check for bad line breaks run as one workflow. Nobody moves text boxes by hand any more.

  • Checked stays checked

    Every figure needs a source, printed in the booklet. Anything that cannot be evidenced does not go in. That part stays with a human being.

  • The booklet is the reference

    You are holding the result of what we otherwise build for our clients. More convincing than any slide about it.

With us, the consulting comes first and costs nothing – the actual work begins after that. This booklet is where it starts. Of course it is advertising, too. Just the kind that is worth your time even if you never work with us.

Free subscription

All previous booklets at once – then a new one every two weeks

Enter your address, confirm with one click and receive every booklet published so far, straight away. After that, one more arrives every fortnight. No sales call, no sharing of your data, unsubscribe by replying to any of the mails.

  • All previous booklets at once, not one after another
  • A new one every fourteen days, produced automatically
  • Portrait or landscape – your choice, switch any time with one click
  • Free of charge, cancel any time

Subscribe to the booklets

How would you like to read?

No spam. Your address is never passed on.