Book excerpt: This entirely case-based book covers a broad cross-section of the practical issues frequently encountered in the day-to-day activities of a molecular genetic pathologist. The book is divided into four sections on the principal areas addressed in molecular genetic pathology (MGP): inherited diseases, hematopathology, solid tumors, and infectious diseases. The topics covered by the cases in each section include test selection, qualitative and quantitative laboratory techniques, test interpretation, prognostic and therapeutic considerations, ethical considerations, technical troubleshooting, and result reporting. This book will be ideal for trainees in MGP and clinical molecular genetics who require a practice-based preparation for board examinations. It will also be very useful for residents and fellows in medical specialties to which MGP is pertinent, and for practicing pathologists who want to learn more about the current practice of molecular diagnostics.