Knowledge of intensive care medicine is growing logarithmically. In addition, intensive care units and their number of beds are increasing in hospitals. Nowadays, the average human life is prolonged due to the growth of medical knowledge and skills. Intensive care units, both as a cause and as a consequence of long-life expectancy, are increasingly important. This book contains current topics on intensive care such as critical care for neonatal, neurological, and cardiological patients; fluid management in these patients; and intensive care infections. We wish the readers find this book to be helpful.