This tutorial demonstrates how to use PsychoPy (v2025.1.1) Builder mode to create basic experiments in cognitive psychology. It is designed for two audiences: those new to programming in psychology, and those with experience using other software (e.g., MATLAB, E-Prime) who are interested in transitioning to PsychoPy. Using a visual search task as an example, I will begin by showing you the completed project and then recreate the same task from scratch. By following along till the end, you'll have built a fully functional experiment identical to the example shown at the beginning.