This book has been designed to provide comprehensive information on Cotton Genetics in objective manner one compact volume of 15 chapters. I hope, this Volume would be useful to the students, teachers and researchers engaged in the discipline of Genetics and cotton crop. Contents:  Introduction and History  Evolution of Cultivated Cottons  Species and Races of Cotton  Gene Interaction and Pleiotropy  Qualitative Inheritance  Polygenic Inheritance  Cytoplasmic Inheritance  Genetics of Male Sterility  Linkage and Gene Mapping  Multiple Alleles  Mutations  Distant Hybridization  Chromosome Morphology  Numerical Chromosomal Changes  Structural Chromosomal Changes