Changing Position of Photos

Hello Guys

i m a little confused here how can i change the position of photos/images ?Imagine i would like to put small logo on the top-left side of my site,how can i do it?

You should do the freeCodeCamp tutorial of CSS. There are some ways how you can do it but it’s hard to explain you here all of that. In the tutorials you have live examples and you can understand better how to do certain things.
Here you have some useful links:
Basic CSS - freeCodeCamp
Applied Visual Design - freeCodeCamp
CSS Flexbox - freeCodeCamp
CSS Grid - freeCodeCamp

Can you please upload some code?
You can do it in mupltiple ways: flexbox, grid, floats…