At a price of FREEEE!, of course this is worthwhile. It's a compact combination of basic composition tips and tips on how to use the controls of iPhone camera. There are also points that are not discussed but you can learn by watching, such as how to hold an iPhone to take steady photos while using the touch screen. This is a class that will tell you that iPhones have a grid mode, but not how to turn it on. (You'll need to look that up yourself because it varies by iPhone.) The phone lenses discussed in the three minute second lesson are no longer made, but info is relatively general and apply to current iPhone lens packages.