What is a 'comp card' or 'headshot'?

What is a 'comp card' or 'headshot'?

Gabrielle Schary (Casting Director) gives expert video advice on: What type of child can succeed in an acting career?; Are certain 'looks' in child actors easier to cast?; Does a child need to have perfect looks to succeed as an actor? and more...

A comp card or a headshot is a visual aid that helps you to be recognized, and it gives you exposure to people who will potentially hire you. You'll always take one to an interview when you go. You might mail them out to as many casting professionals and agents as possible. A comp card is basically a collage of different looks, whereas a headshot is typically one shot.