how put adsense leaderboard in the header?

Copy header.php in your child theme and make modifications in there. You need also styling changes so all looks nice.

Thanks,
Can you go about approximately How I can do that? I created a child theme, and want to have that adsense banner on the right while the site description below the logo.

Help is very appreciated. Thanks

Open header.php in your child theme and replace site description code with your adsense code. Even after that you might need to custom styles to make it look good.

https://github.com/samikeijonen/path/blob/master/header.php#L59