Whoever wrote this must NOT have been a graphic designer because all of these things are used in different mediums of graphic design. Also if something is for designers, make sure your design is damn good. The Skills Required To Be A Good Designer.
Adobe InDesign is a powerful software for desktop publishing. Just like many Adobe products, it does take some time getting used to. This Adobe InDesign cheat sheet by 99 Designs shows you how to get started with its shortcuts: