The book provides a comprehensive overview of classic and modern approaches of centrosome research, including new aspects of centrosome functions focusing on primary cilia and their implications in numerous diseases. In addition, several chapters raise awareness of centrosomes in areas that have not yet fully considered the centrosome as an organelle that impacts other organelle functions directly or indirectly. It further relates centrosome functions to other research areas such as aging and stem cell research. Since its discovery almost 150 years ago the centrosome is increasingly being recognized as a most impactful organelle for its role, not only as primary microtubule organizing center (MTOC) but also as a major communication center for signal transduction pathways and as a center for proteolytic activities.