This introduction presents an overview of the key concepts discussed in the subsequent chapters of this book. The book is concerned with the concept of inclusion, and the degree to which the development and execution of philanthropic strategy includes broader constituents. These constituents could be representatives of intended beneficiary populations, potential partners, or diverse constituents that may not be among grantee populations. The book explores several case examples of philanthropic strategies that prioritize inclusion in the US and elsewhere. In each of these case studies, it outlines a foundation’s strategy, examines how the foundation developed an inclusive strategic approach, assesses the strengths and challenges of the approach, and analyzes the approach’s impact and long-term viability. The book presents profiles that capture the ideas and techniques of foundations attempting to complement their philanthropic strategy development with an increased emphasis on inclusion.