The public cleaning service of the city of Lausanne, here in Switzerland demonstrates its value and effectiveness with billboards that show how dirty the streets were before they started working and how clean they are after their work.

Hi there in this video, I want to share with you a good or service design trick, and it goes like that.

Let me just share my screen with you so that you can see what I'm after. So we are here in notion.
That's a place where I put all my service design principle ideas and all the observations I do, liver service experiences that I find interesting.
And there is one which is a very old trick, which is show me the before and after. And let me show you what I mean with that.

So you know, public service is something that takes takes a lot of money, you know, cleaning roads and all of this stuff.

And sometimes you ask yourself, you know, why the hell do I spend so much money in taxes? And it's a good question, you know, because not kind of the result of this hard work done by public service services is not always visible.

And here, the city of Lausanne here in Switzerland, did something quite nice with the cleaning services, you know, the service where you have people then going into streets and cleaning the streets and making that, you know, making Switzerland and loss and especially kind of like a lovely place to be in.
And how did they do they do that now? We all think, okay. Swiss people are kind of very polite and very nice and they don't pop, they don't throw stuff on the street, but that's not really true because here the city of Lausanne, it's something quite nice.

They clean the street and then they showed that they did it and they showed the difference that it makes that they did it.
So this kind of this thing here this poster says: 

And one thing that they did, it's not just like, say it with words, but they prove it is visuals. You know, they say, okay, that's how the street was before.

And you see all the dots are chewing gums, and now that's how it is after the cleanup.

Okay. And now I think, okay, I see the value of paying taxes. I see the value of these public services and they just use this very good old trick, which is show me the before and after.

And that's something that many services also do today by showing you before even you buy the service Software apps do that quite well.

They show you for example, if it's a software that helps you retouch images, for example, they might show you, Hey, this is the image that is original.
And that's the image, how it's retouched With our software. You know an artist might do the same, you know, like a photo we touching artists called do to save again and here it's definitely a service.
He could show you, Hey, this is the photo you gave me. And this is how it will then look after you have used my service.

And then, you know, it's a very, very, very, very old trick. But I think we often forget to use it, especially for things that we feel are just obvious, like public services.

You know, we, we don't think to, to compare like showing, Hey, this is how it was before and how it's after, because by showing this after, before and after you show the value of your service, and this can be done in several ways, it can be done either before, like showing before someone buys your service, showing them, 

We could give you value by showing examples of past results. That's pretty good. It's kind of a good sales mechanism, but built on past results, which is kind of a very trustworthy.

And the other way is if it's just a service that you already got, you know, like public services lights and stuff, you know, this is kind of like a electricity to stay.

This is the kind of services that you don't think even about. You can make the value of that service clear after the fact, but just showing: that's how it was before.