Osteoimmunology is the study of the correlation between bone and immune cells. It emphasizes the two sided communication that takes place among the immune cells and bones. The interactions taking place between the immune system and bone are critical in maintaining skeletal homeostasis. The bone marrow cavity is essential for the growth of the immune system. It also houses crucial stem cells for maintaining the immune system. Immune cells create cytokines, which have crucial effects on the modulation of bone homeostasis. There are a few critical cytokines, which are produced by the immune system, such as TNF- #945;, RANKL, IFNs, M-CSF and ILs. These affect the activity and differentiation of bone resorption and osteoclasts. This book is a valuable compilation of topics, ranging from the basic to the most complex advancements in the field of osteoimmunology. It will prove to be immensely beneficial to students and researchers in this field.