When it comes to landscape photography lens choices, the default choice is almost always a wide angle lens. Making successful photographs with one is tricky, however. This great video tutorial discusses some of the challenges and pitfalls of shooting with them and what you can do to improve your work when using one.
Coming to you from Mads Peter Iversen, this awesome video tutorial discusses common mistakes landscape photographers make with wide angle lenses and how to fix them. By far, one of the most common mistakes I see is not including a proper foreground element. The problem is that wide angle lenses tend to push anything in the background away from the lens and make it look smaller, and when you do not have something compelling in the foreground, the resulting image can feel like it has a lot of empty space. A good leading line or foreground element can do a lot to balance out the composition and make a more interesting image. Check out the video above for the full rundown from Iversen.
And if you really want to dive into landscape photography, check out "Photographing The World 1: Landscape Photography and Post-Processing with Elia Locardi."