The second part of this double e-book focuses once again on the growing number of organizations that are outsourcing select or entire logistics activities to Third Party Logistics (3PL) or Fourth Party Logistics (4PL) service providers, not merely as a means to achieve cost efficiency but also with a long-term strategic objective for creating competitive advantage through increased service and flexibility. It re-emphasizes the need to make researchers and practitioners aware of the importance of 3PL, 4PL and Reverse Logistics in managing the supply chain profitably in a rapidly growing digital economy. The majority of papers in part two are concerned with 3PL; the last paper examines the role of 4PL.