Drawing the table

To draw the table, use the right button of the mouse and select the new/primitive/box command from the pop-up menu.
A box will appear in the windows. Now, you have to resize the box in order to have a table. Select the object (when selected, an object has green shape) and click on the control points on the vertices to scale it, as described in the following image.

In order to see the object in the camera view, you have to set up the camera. You can do this simply by selecting the camera and moving it: in this way you will able to see the box. Assuming that you have scaled the box in order to obtain a table shape you can see now the results in the following image.