The editors have engaged leading scientists in the field to participate in the development of this book, which is envisioned as a “one of a kind� contribution to the field.  The book is a comprehensive text that puts fundamental bioanalytical science in context with current practice, its challenges and ongoing developments. It expands on existing texts on the subject by covering regulated bioanalysis of both small and large molecule therapeutics from both a scientific and regulatory viewpoint. The  content will be useful to a wide spectrum of readers: from those new to bioanalysis; to those developing their experience in the laboratory, or working in one of the many critical supporting roles; to seasoned practitioners looking for a solid source of information on this exciting and important discipline.