The exercise on p158 is a series of photos where the camera & subject stay static and the light moves around the subject. This is to get a feel for the way the angle of lighting will affect a subject. I’ve chosen a subject with many facets to show light & shadow with each angle change. The first five are at subject level. The next five are at a 45 degree angle from the subject and the last one is directly lit from above. Please click on the thumbnails to open the gallery:
I took small setup shots on my iphone for each of them (below) but it may be easier to see what the lighting set up was from my diagram which shows the table, first from above then from the side of all the positions the lamp was in for each of the 11 shots.
In each of the set up shots I used a lens cap to represent the placement of the camera (usually) just out of shot.