Synopsis With the immense success of business process outsourcing (BPO), firms are increasingly tending to outsource more and more of their functions. At present, outsourcing is predominantly extended to various functional areas such as research & development, human resources management (HRM), finance, accounting, supply chain management (SCM), etc. Besides, the significance of ‘outsourcing’ is also increasingly realized and adopted in certain sectors like manufacturing, banking, insurance, pharma, healthcare, etc. The current trend in the outsourcing value chain is Knowledge Process Outsourcing (KPO), while the outsourcing models such as Multi-outsourcing, Knowledge Process Off shoring (KPO), Business Transformation Outsourcing (BTO), are emerging as significant practices. The book throws light on various related models-operational, delivery and business models-of BPO such as Multi-sourcing, Business Transformation Outsourcing, Knowledge Process Outsourcing, Knowledge Process Off shoring, etc., and provides insights into various applications across a few select functions and sectors. Also, relevant contextual insights are covered in the process. This book is expected to be of interest to any practitioner, while offering learning value to the students, academicians and other allied professionals.