This handbook will provide an overview of most up-to-date statistical methods required for design, monitoring and analysis for dose finding clinical trials, focusing both on the clinical aspects as well as statistical considerations. This handbook will not cover statistical methods for Phase II non-dose finding studies or Phase III clinical trials. "This book provides different perspectives for revisiting drug development in both therapeutic areas. Statisticians involved in early phase clinical trials, whether in academia or in industry, may get benefit from this book. They will find descriptions of some innovative methods that will be helpful in designing dose-finding trials." ~Xavier Paoletti, Biometric Journal