Currently, Adobe Photoshop is the best photo editor I tested. It is really sophisticated and advanced. But without basic, it can be really hard to use it. Today, there are many tutorials specializing with Photoshop. In order to learn the basic, simply go to YouTube and search “basic tutorial in Photoshop”.
I would love to make tutorial video but then I thought why not I just share the tutorials I watched before. This will show my token of gratitude for helping me understanding Photoshop. In fact, it could help you too. There are one or two videos I love to share for this topic. I use Adobe photoshop CS6 but the older versions are actually more or less similar to it.
I find this tutorial useful for beginner. It teachs step by step how to use photoshop tools. The brush tool is the most important and I use it a lot. I remind you that this tutorial don't teach the use of all the tools. It chooses some essential tools that might be useful for basic editing. If you are interested of using other tools, better start your homework now.
This video might be useful for beginner too. It is hard at first to understand and execute it but there will be no fun if everything is easy. This video shows other useful tools in photoshop and it might be handy oneday. Remember, not all tools are useful Some edit better than others. So I suggest to find as many tutorials as possible to master photo editing.