This document discusses different techniques used in ballpoint pen drawings including hatching, cross-hatching, and stippling. Hatching uses closely spaced parallel lines, cross-hatching uses intersecting parallel lines like a checkerboard, and stippling uses dots spaced closely or far apart to suggest light and dark. Examples of ballpoint pen drawings that use these techniques are shown from artists Caleb Hahne, Juan Francisco Casas, Kate Louse Powell, Enam Bosokah, Il Lee, and Nicolas V Sanchez. Artists like @luiscolanart on social media also create ballpoint pen drawings using these techniques.