Studies find a deterioration in reading attitudes. This is worrying since research suggest that attitudes are key in developing reading comprehension. The aim of this study was, hence, to examine the relationship between the amount of school reading experience, beliefs about reading outcomes and reading attitudes. The theoretical framework was based on McKenna's model of reading attitudes acquisition, with a focus on context of the Croatian language classes. Sample of 3918 gymnasium graduates from Croatia (73.4% female) completed the survey. The results show that the reading experience is associated with reading attitudes directly and "via" mediation of reading beliefs. Students who participated in more reading activities in the classes had more positive beliefs about reading, which contributed to more favorable attitudes. This is an important input in understanding reading since these elements of the McKenna model were not widely confirmed. The results also highlight the importance of diverse reading curricula.