A book entitled 'Biometrical techniques in plant and animal breeding' is edited by the authors and the topics of the book are dominated by recent statistical techniques and statistical software packages useful in plant and animal breeding. The book has been compiled and edited with up-to-date and interesting articles contributed during the course of training by the eminent professionals of national institutes. The book is aimed to familiarize the readers with the recent advances in the field of Biometrics and other useful statistical and computational tools applied in the areas like plant/ animal breeding and also to upgrade the research and teaching skills of the research worker. Emphasis has been given on how to analyze animal/ plant breeding data and other experimental data by sophisticated statistical software packages. We hope the book will be a very good source of reference material for all those working in plant and animal breeding.