A moodboard is a collection of pictures, colors, textures, and other visual examples that shows how a design should feel. It helps people talk about a look before creating the finished design.
Imagine collecting photos of calm spaces, a few colors, and examples of type styles on one board. The collection can help a team agree whether the product should feel calm, playful, or formal.
A moodboard suggests a direction; it is not the finished page or a detailed set of rules. The team still needs to decide how that feeling works in the actual product.