I'm confused what's happening here, in the first pic the the LVP line intersects with the ellipse's minor axis but in the next step where he tells you to trace the guidelines there's a new LVP line that intersects with a different vertical line and I can't find where he explains how he found the new LVP line. did he free hand it? the pages shown are 136 and 137 and the exercise starts at page 133
https://www.pdfdrive.com/how-to-draw-drawing-and-sketching-objects-and-environments-from-your-imagination-e158148887.html