How does the warden know all of the campers nicknames in the book 'Holes'?

In the book "Holes" by Louis Sachar, the warden knows all of the campers' nicknames because she has a keen interest in maintaining control and power over the boys at Camp Green Lake. She uses these nicknames as a way to reinforce her authority and to keep the campers in line. Additionally, the nicknames reflect the boys' personalities or characteristics, making it easier for her to remember them and assert her dominance. This dynamic highlights the harsh environment and the warden's manipulative nature.