This paper attempts to present the use of the prepositional genitive in textbooks and manuals of the Croatian language. The prepositional and prepositional genitive in primary and secondary school textbooks and in manuals were compared. The representation of individual prepositions that come with the genitive is presented and the temporal, spatial and modal meaning of this case is explained. The paper also presents the meanings of genitive prepositional expressions so that it starts from simpler examples for primary and secondary schools to those more complex examples used in manuals. Prepositions that give way to the genitive are stylistically neutral, and can also be stylistically marked. Examples of this are given throughout the paper and explanations of the normatively prescribed pattern of use are added. The paper also briefly refers to the difference between adverbs and prepositions, the semantics of certain prepositions and the spelling rules. Other cases are also listed, which, along with the genitive, agree with certain prepositions. In addition to the similarities and differences of individual prepositions with the genitive in textbooks and manuals, an analysis of the most common student mistakes is presented in conclusion, namely the substitution of prepositions due to and works in their use.