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No. The simulations run in the browser without an account and without prior knowledge: move a slider and watch what changes. School, university, a job next to the topic, plain curiosity — that's the audience. The same goes for commissioned work. You don't need to know anything about EMC or electric mobility. Tell me what should come across and I'll translate it into a graphic, an interface, or a design.

Yes. Every public simulation is free and works without signing up. An account only comes in when you want to save parameters or keep your own presets, and that's free too.

Three: visual and brand design (logos, corporate identity, social media), user interfaces and mini-apps (web dashboards, MATLAB/Python GUIs, prototypes), and technical content (publication graphics, schematics, conference material). Where you're based doesn't matter — briefing, revisions, and delivery run by email and video call anyway. I only need to be on site when something has to be photographed.

It depends on the scope, which is why there are no price lists on this site. Small pieces like a graphic or a logo start at a modest fixed price; complex visualizations, interactive dashboards, or a full brand project are calculated individually. After the briefing you get a written fixed price with scope, delivery date, and usage rights in it. I work under the German small-business rule (§19 UStG), so there's no VAT on the invoice: the amount in the quote is the amount you transfer. If your company is entitled to deduct input tax, there'll be none to deduct from my invoice. Write to me and you'll hear back within 48 hours.

Small jobs — a logo, a poster, a single graphic — are often done in 3 to 7 days. Bigger ones, like a UI, an interactive application, or a complete branding, we plan in milestones, typically 2 to 6 weeks. Beyond that I deliberately don't quote fixed lead times: a single piece and a full event package take different amounts of time, and it depends on what else is on my desk. Tell me your date and the quote will say honestly whether it's doable. Count your print shop's turnaround in as well. If it's urgent, ask anyway — sometimes it's quicker than you'd expect.

Two. After the first draft you collect your change requests and send them over together, then there's one more round. If that isn't enough, I bill further rounds by effort, and you'll know what they cost before I carry on.

The print-ready and web-ready files go to you in every case, with usage rights for the purpose named in the quote: your event, your website, your publication. If you want to use the same visual for something else later, we sort that out in two sentences. Open working files like InDesign or Illustrator I don't hand over as a rule, so nobody rebuilds my layout one to one; additional variants or formats I produce for an extra fee. One exception: if the job itself is a template, a carousel you fill in yourself for instance, the file is the actual product and has its own higher fixed price. Printing you commission yourself. That way you keep control over paper, print run, and price, and I put no markup on print costs. If you don't have a print shop yet, I'll suggest a few.

A complete piece of work for a client who doesn't exist. I invent an event, design the whole set of material for it, and label it as a sample. That way you can judge the work without me showing client projects that are still confidential or aren't mine to show.