This chapter discusses the links between psychological contracts and idiosyncratic deals. While both concepts have been theoretically developed by the same scholar, they are also indicative of emerging societal trends that influence the topics under study by researchers in the field of organizational behaviour and human resource management. This chapter discusses how individualization as a broader societal process has influenced the study of psychological contracts, as well as the subsequent shift towards the phenomenon of idiosyncratic deals. Key similarities and differences between the two concepts are discussed. The chapter finishes with recommendations for further research.