Time for action – choosing the best display mode
The Viewport Shading menu is in the header of the 3D View window. It lets you choose between the different methods of shading the objects displayed. While you may want the Texture display when you need to show an object's appearance, quite often, the Solid and Wireframe views will be best for modeling:
Use the Tab key to get into Edit Mode in 3D View, if you have not done so already. If you are unsure, look at the Interaction Mode Selector button on the header near the left-hand side of the 3D View window. It tells you what mode you are in.
Move the cursor to the Viewport Shading menu, as seen in the next screenshot. It's the same one that you used to change the mode to the Texture when you were playing with the lighting.
Now, select the Wireframe mode. What is different about the 3D View?
What just happened?
You changed the Viewport Shading in the 3D View to Wireframe. Now, the cube is transparent, and you can see all the vertices and edges...
