Vaccines are an integral part of routine preventative health care for persons of all ages and play an integral role in protecting individuals against vaccine-preventable diseases. This handbook provides easy-to-understand, practical information on routinely recommended preventative vaccines for persons of all ages. It is written to be an informative, easily accessible, quick resource that addresses common vaccine issues that may be encountered by busy health-care providers in different specialties and at all different levels of training and practice. The “Did you know that” sections at the beginning of each chapter provide interesting facts on vaccines and vaccine preventable diseases. The FAQ section at the end of each chapter provides answers to commonly encountered situations in clinical practice involving vaccines. Exploring the different sections of this handbook will arm the reader with the tools needed to discuss the importance of vaccines and recommend the appropriate vaccines for their patients in order to optimally protect them against vaccine preventable diseases.