First published in 1966,Thompson and Thompson Genetics and Genomics in Medicinehas become an essential textbook for medical students, genetic counseling students, students in laboratory medicine, and more advanced trainees. With its focus on fundamental principles in human genetics and genomics and their application to medicine, the book has served many as a well-thumbed resource they return to over and over.Such students can continue to depend on this valuable text, joining those in newer fields of genome data analysis for all they need to know about genetics and genomics throughout their basic science training, clinical placements and beyond. Coverage includes new discoveries-such as the functional roles of non-coding RNAs, chromatin regulation and epigenetics-latest technologies, and new diagnoses they are enabling.Under an expanded title, this ninth edition has been completely revised by a new editorial team overseeing a large cadre of contributing authors. Support groups have also assisted to update illustrations featuring beautiful images of those living with genetic conditions.