Vibrations caused by pile-driving can damage structures, while litigation may result from the human distress which pile-driving induces. There are ways to mitigate both aspects of the problem and it is important to assess the likelihood of damage and to minimize any ensuing costs early in the process. This book is based on the responses to a questionnaire which was developed and sent to all state departments of the USA and Canada. Additionally, questionnaires were sent to piling contractors, vibration consultants and vibration monitoring firms. It will help readers to better understand the potential for damage and the precautions which should be taken.