BIBFRAME has worked on modelling works as Works within the BIBFRAME model, similar to the RDA modelling work, itself modelled on the work on the FRBR model of Works and Expressions. A BIBFRAME Work is a creative work, perhaps a FRBR Work, or an RDA FRBR Work but it also expresses a FRBR Expression, and of course an RDA FRBR Expression. A Work may express another Work based on others’ work, not just a FRBR Work or an RDA Work. That also works. FRBR Works or RDA Works expressed as BIBFRAME Works can relate to FRBR Expressions (BIBFRAME Works or RDA Expressions). So, Works are works that can be Works but also Expressions linked to Works that really are Works.