Final answer:
Underlighting is not required to be included on the cheat sheet.
Step-by-step explanation:
On the "Lighting in Photography Cheat Sheet", you will NOT be required to include Underlighting. Underlighting refers to light coming from below the subject, which is not commonly used in photography as it can create unflattering and unnatural shadows. The other three lighting types: Frontlighting, Backlighting, and Sidelighting, are essential to include on the cheat sheet as they are commonly used in photography to create different effects and enhance the subject.