This master's thesis deals with how a school class of 19 students that are 12 years old, perceive the conception of the library and its activities, and how this can be studied by using four different approaches: analysis of the children's drawings, analysis of the children's essays and analysis of their answers to questions in an inquiry and in interviews. Theories of how children learn, develop and perceive the world are briefly presented, as we11 as theory necessary for the analysis. The four different techniques produced in general the same result; the children displayed the same thoughts, knowledge and values in the drawings, in the essays, in the inquiry and during the interviews. The children participating look upon a library as mainly a building, though sometimes also a room, where there are books.