Many PDF seekers overlook this section, but it is the crown jewel. Velasco provides step-by-step instructions for constructing complex figures using only a compass and unmarked straightedge. This includes:

If you are looking for an alternative to this specific title, I recommend searching for Geometría y Trigonometría (2010) by the same author. It is his more modern and updated work on the subject, sharing the same target audience and pedagogical approach, and is widely available.