The aim of this book is to give an account of the scientific field of genetics based on visual displays of selected concepts and related facts. Additional information is presented in the introduction, with a chronological list of important discoveries and advances in the history of genetics, in an appendix with supplementary data in tables, in an extensive glossary explaining genetic terms, and in references, including websites for further in-depth studies. This book is written for two kinds of readers: for students of biology and medicine, as an introductory overview, and for their mentors, as a teaching aid. Other interested individuals will also be able to gain information about current developments and achievements in this rapidly growing field.