Most newer photographers will begin their editing journey in Lightroom rather than Photoshop, and even as you become more advanced, you will notice that you can still do a lot or even most of your editing in the former, only needing to resort to the latter for truly complex post-processing tasks. If you are a beginner and looking to understand how the various editing functions in Lightroom work, check out this great video tutorial that will have you up and running in no time at all.