Fundamentals of Micromachined Vibratory Gyroscopes.- Fundamentals of Micromachined Gyroscopes.- Fabrication Technologies.- Mechanical Design of MEMS Gyroscopes.- Electrical Design of MEMS Gyroscopes.- Structural Approaches to Improve Robustness.- Linear Multi DOF Architecture.- Torsional Multi DOF Architecture.- Distributed Mass Architecture.- Conclusions and Future Trends.