The topic of the culture and the cultural changes can be tested in many ways and methods. The educational contents are key elements of the transmission of cultural values.

The textbook is the most important teaching tool which contains the declared cultural elements. It is the textbooks nature they present culture and cultural changes in every age. (Dárdai, 2002; Mikk, 2002) Therefore, the examination of textbooks is very suitable method for monitoring changes in mediated culture.

The textbook research is defining the discipline of science education. The textbook studies provide an opportunity to examine the historical and legal textbook case sides. This research examines the changes in the laws of the textbook approval.

At present In Hungary the textbook-approval process consists of several steps. The tasks of textbook approving and official declaration into the textbook inventory is being made by Education's Office Regional Coordination Department Accreditation Department. The process takes place in the following procedure. The process can be initiated by publishers or ministers. The statement (report editor, publishing statements) and the procedure requesting document always have to be appended.  The process of application is determined by regulation (Szüdi, 2006). Then, the Office of Education appoints experts who make an advice according to a detailed peer review panel. The experts work together in the study. The pedagogical expert examines the aspects of content. Technology expert examines the aesthetic aspects relating to appear. The language experts carry out the nationality or foreign language textbook testing. Before the textbook is being approved, it has to go through an experimental textbook phase. During this process they make an impact assessment. This test shows that how the textbook influences the results of the students, as well as it examines, if is there any other effects next to the proposed ones.  Another phase of the pilot trial testing is examining the practical applicability. The experts summarize the experience which collected with different test methods (Classroom Observation, questionnaire surveys and interviews). After the experts completed the testing, they summarize the results and recommend improvements. The pilot needs to involve at least ten schools, which use the textbook for minimum three years. According to the experts unanimous opinion they may propose the inclusion of the textbook to the textbook list. 

References: Ágnes, Dárdai (2002): A tankönyvkutatás alapjai. Dialóg Campus Kiadó, Budapest-Pécs. 156. András, Müller (2001): A tankönyvpiac alakulásának főbb tendenciái. In: Új Pedagógiai Szemle. LI. évfolyam, 1. szám, 47-56. István, Ábrahám (2002): A tankönyvellátás változásai a rendszerváltás után In: Iskolakultúra. XII. évfolyam, 2. szám, 75-80. Jann Mikk (2002): EXPERIMENTAL EVALUATION OF TEXTBOOKS AND MULTIMEDIA. In: Staffan Selander & Marita Tholey (Eds.). New educational media and textbooks. The 2nd IARTEM Volume. Stockholm Institute of Education Press. 121 - 140. János, Szüdi (2006): A tankönyvvé nyilvánítás rendje. In: Szüdi János (szerk.): Az oktatás nagy kézikönyve. CompLex Kiadó Jogi és Üzleti Tartalomszolgáltató Kft. Budapest.