What is the name of the application form that is sealed with a stapler?

The application form for joining the Youth League is sealed with a stapler, which can be called a "binding book" or a "stapler-bound booklet." This practice is mainly to prevent the paper from being lost and also to facilitate others to read. When binding with a stapler, several pages of paper are usually stacked together and placed in the upper left corner for binding, which makes it easier to read.