Which software is the best?

Can you please tell me which is the best software to edit few images? Is possible to learn form youtube?

There is no “best,” and, other than being somewhat naive, your questions don’t provide enough context for anyone to formulate a useful reply.

What is your level of experience?
Are you looking for free software?
What kind of images?
What kind of editing?

You can learn some things watching YouTube clips—if you find the right clips and avoid the wrong ones. That’s the problem with self-teaching online; you don’t know what you don’t know, so it’s easy to be mislead by substandard content.

Yep … what Hot Button said.

We really need to know how in depth of an edit you are looking at and what your experience level is. If you have no experience, none will be a walk in the park.

That being said if you are looking to do something rather simple there are some Apps out there now that are actually pretty good for small things.

You can learn lots of things from YouTube. If you want to do very complex work like photo retouching then Photoshop is the best way to make the photo however you want. If images are not very complicated like photo crop or resizing then Picasa is very nice tools for photo editing beside it, this is free tool included lots of effects.

If you are just converting files and doing minor fixes you can get shareware “Graphics Converter” for about $40 (give or take). As long as you aren’t doing the color correction for industry it has all the tools you need for home use.

If you can, get photoshop. There are tons of free tutorials for photoshop on yoootooob.