If you're looking to learn how to edit photos, but don't want to shell out the money for Photoshop, Pixelmator is a fantastic alternative.
This course covers:
The key phrase to enter into the URL is http://flickr.com/photo.gne?id=[##########]
But that's more than you should try to memorize all at once.
If this is your first foray into image editing, it's probably a good idea to watch this lecture and the previous lecture a couple of times as they are fairly content dense. Then practice, practice, practice.
Or at this point, you're on strong enough ground that I'm betting you can learn a thing or two by simply Googling It and watching a few more of the videos until it clicks. Make sure you understand layers before you go forward.
However, if you are looking to take your skills to the next level and will be editing on a regular basis, this is a good time to check out my far more in depth course The Photoshop CS6 Crash Course. With over 3,000 students and over 70 five star reviews, it's a great way to save a year of frustration and jump right into using the program like a pro.
Jeremy Shuback is an Animation Director who's directed over a hundred shorts in the last ten years. His shorts have been featured in the WSJ, CNN, NPR, WaPo, and many other places. In 2016 he directed, Shaboom! an animated children's series and currently he's directing an educational series about the basics of the religion Judaism.
On the side, he strives to create absurdly good courses. He's flown to hundreds of cities to teach classes on design and on marketing.
For more about him and his work, head to his website.