"Cookies" files are IT data enabling to recognise the user's devices and display the website according to his/her preferences. They can also be used to identify users of the website www.itaka.pl on websites belonging to advertisement networks and displaying text and graphic ads within the framework of the remarketing service. "Cookies" files are also used to create statistics and analysis of browsing history, which helps improve the structure and content of the website. The user, however, remains anonymous. Internet users can secure themselves against the use of "cookies" files by entering the appropriate settings in the browser or in the manager of Google advertisement preferences, which can additionally affect the functionalities available on the website.