Inventor 2D and 3D drawings and video tutorials are shown below. You can see many different 3D CAD programs drawings here. If you want to practice Inventor drawings, try sharing technical drawings. Also you can use it different CAD programs.
Watch video to see how this part is created in Inventor.
I create many different technical drawings in Inventor, Catia and FreeCAD. If you have an interest for CAD programs, I recommend to follow my youtube channel.