Among his many accomplishments, Jan-Erik was one of the founding members of this journal during his time at Stockholm University School of Business, the intellectual home of human resource costing and accounting. It is therefore very fitting that we celebrate Jan-Erik's life and work in an e-book of the Journal of Human Resource Costing and Accounting, This e-book offers a brief view of Jan-Erik Gröjer, not only as a researcher in accounting, but also as a person, as a supervisor and leader, as a teacher and a student, and as a dear friend. It was through Gröjer's personality and his engagement in business studies that the borders of accounting became more interesting, more important and more memorable for a greater audience that just his closest colleagues.