FRBRoo, as a result of the harmonization of FRBR and CRM, it has many benefits due to the conceptualisation of FRBR, which is also expressed in FRBRoo. FRBRer introduces the concept of “intellectual derivation” which helps the grouping of library resources in bibliographic families and brings a friendlier view and access in online catalogue displays. It gives us a fresh look at the bibliographic universe using more precise language to help clarify concepts and terms. Its focus is domain-independent and can be regarded as the most advanced formulation of library conceptualization. In concrete it defines stages of intellectual products and distinguishes between products with ideational content and physical objects. It doesn’t focus on the physical exemplar, like the prevailing practice in libraries nowadays, but it introduces the entity “Work”, an abstract concept, in order to focus to the intellectual derivation of products. Its innovation is to cluster various translations, editions versions and items around the notion of a common conceptual origin – the 'Work' in order to support information retrieval. Thanks to its innovative conceptualization and the introduction of the concept of “intellectual derivation”, FRBRer gives a new perception on how access to bibliographic records is realized. It brings a friendlier view and access in library catalogues by displaying clusters of works (titles) rather than a list of records. This way it improves the intelligibility and browsability of results, though it is friendlier for users.