It is used in the casting process to demonstrate the level and range of a performer's talent. Auditions are essentially a job interview for the performing arts and are performed for a casting panel. Casting panels are often comprised of a casting director, producer, director and/or choreographer. Most actors will have a repertoire of audition pieces to demonstrate different aspects to their talent set. However, some casting directors prefer to have the talent do 'cold readings'. Cold readings are performances based on non-memorized scripts.